[WebGL] Implement webgl.max-size-per-texture-mib

[XPCOM] Fix Base64 off-by-one issue and safeguard against this mistake in the future.
[No issue] Hold some strong references on nsRefreshDriver
2022-10-26 14:50:05 +00:00 · 2022-10-26 14:49:55 +00:00 · 2022-10-26 14:49:46 +00:00 · 2022-10-26 14:49:33 +00:00 · 2022-10-26 14:49:23 +00:00 · 2022-10-26 14:45:39 +00:00
5753 changed files with 663518 additions and 392200 deletions
@@ -22,4 +22,4 @@
 # changes to stick? As of bug 928195, this shouldn't be necessary! Please
 # don't change CLOBBER for WebIDL changes any more.

-Clobber for NSS update
+Issue #1971 - Update to ICU 63 requires clobber
@@ -137,16 +137,10 @@ default:: $(BUILD_BACKEND_FILES)
 endif

 install_manifests := \
-  $(addprefix dist/,branding idl include public private sdk xpi-stage) \
+  $(addprefix dist/,branding bin idl include public private sdk xpi-stage) \
  _tests \
  $(NULL)
-# Skip the dist/bin install manifest when using the hybrid
-# FasterMake/RecursiveMake backend. This is a hack until bug 1241744 moves
-# xpidl handling to FasterMake in that case, mechanically making the dist/bin
-# install manifest non-existent (non-existent manifests being skipped)
-ifeq (,$(filter FasterMake+RecursiveMake,$(BUILD_BACKENDS)))
-install_manifests += dist/bin
-endif
+
 install_manifest_depends = \
  CLOBBER \
  $(configure_dir)/configure \
@@ -166,27 +160,6 @@ endif
 .PHONY: install-manifests
 install-manifests: $(addprefix install-,$(install_manifests))

-# If we're using the hybrid FasterMake/RecursiveMake backend, we want
-# to recurse in the faster/ directory in parallel of install manifests.
-# But dist/idl needs to happen before (cf. dependencies in
-# config/faster/rules.mk)
-ifneq (,$(filter FasterMake+RecursiveMake,$(BUILD_BACKENDS)))
-install-manifests: faster
-.PHONY: faster
-faster: install-dist/idl
-	$(MAKE) -C faster FASTER_RECURSIVE_MAKE=1
-endif
-
-.PHONY: tup
-tup:
-	$(call BUILDSTATUS,TIERS make tup)
-	$(call BUILDSTATUS,TIER_START make)
-	$(MAKE) install-manifests buildid.h source-repo.h
-	$(call BUILDSTATUS,TIER_FINISH make)
-	$(call BUILDSTATUS,TIER_START tup)
-	@$(TUP) $(if $(findstring s,$(filter-out --%,$(MAKEFLAGS))),,--verbose)
-	$(call BUILDSTATUS,TIER_FINISH tup)
-
 # process_install_manifest needs to be invoked with --no-remove when building
 # js as standalone because automated builds are building nspr separately and
 # that would remove the resulting files.
@@ -198,17 +171,8 @@ endif

 .PHONY: $(addprefix install-,$(subst /,_,$(install_manifests)))
 $(addprefix install-,$(install_manifests)): install-%: $(install_manifest_depends)
-ifneq (,$(filter FasterMake+RecursiveMake,$(BUILD_BACKENDS)))
-	@# If we're using the hybrid FasterMake/RecursiveMake backend, we want
-	@# to ensure the FasterMake end doesn't have install manifests for the
-	@# same directory, because that would blow up
-	$(if $(wildcard _build_manifests/install/$(subst /,_,$*)),$(if $(wildcard faster/install_$(subst /,_,$*)*),$(error FasterMake and RecursiveMake ends of the hybrid build system want to handle $*)))
-endif
 	$(addprefix $(call py_action,process_install_manifest,$(if $(NO_REMOVE),--no-remove )$*) ,$(wildcard _build_manifests/install/$(subst /,_,$*)))

-# Dummy wrapper rule to allow the faster backend to piggy back
-$(addprefix install-,$(subst /,_,$(filter dist/%,$(install_manifests)))): install-dist_%: install-dist/% ;
-
 .PHONY: install-tests
 install-tests: install-test-files

@@ -25,7 +25,6 @@ builtin(include, build/autoconf/zlib.m4)dnl
 builtin(include, build/autoconf/icu.m4)dnl
 builtin(include, build/autoconf/clang-plugin.m4)dnl
 builtin(include, build/autoconf/alloc.m4)dnl
-builtin(include, build/autoconf/ios.m4)dnl
 builtin(include, build/autoconf/sanitize.m4)dnl

 MOZ_PROG_CHECKMSYS()
@@ -1,129 +0,0 @@
-import java.util.regex.Pattern
-
-allprojects {
-    // Expose the per-object-directory configuration to all projects.
-    ext {
-        mozconfig = gradle.mozconfig
-        topsrcdir = gradle.mozconfig.topsrcdir
-        topobjdir = gradle.mozconfig.topobjdir
-    }
-
-    repositories {
-        if (gradle.mozconfig.substs.GRADLE_MAVEN_REPOSITORY) {
-            maven {
-                url gradle.mozconfig.substs.GRADLE_MAVEN_REPOSITORY
-            }
-        }
-    }
-}
-
-buildDir "${topobjdir}/gradle/build"
-
-buildscript {
-    repositories {
-        if (gradle.mozconfig.substs.GRADLE_MAVEN_REPOSITORY) {
-            maven {
-                url gradle.mozconfig.substs.GRADLE_MAVEN_REPOSITORY
-            }
-        }
-        // For android-sdk-manager SNAPSHOT releases.
-        maven {
-            url "file://${gradle.mozconfig.topsrcdir}/mobile/android/gradle/m2repo"
-        }
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.3'
-        classpath('com.stanfy.spoon:spoon-gradle-plugin:1.0.4') {
-            // Without these, we get errors linting.
-            exclude module: 'guava'
-        }
-        // Provided in tree.
-        classpath 'com.jakewharton.sdkmanager:gradle-plugin:1.5.0-SNAPSHOT'
-    }
-}
-
-task generateCodeAndResources(type:Exec) {
-    workingDir "${topobjdir}"
-
-    commandLine mozconfig.substs.GMAKE
-    args '-C'
-    args "${topobjdir}/mobile/android/base"
-    args 'gradle-targets'
-
-    // Only show the output if something went wrong.
-    ignoreExitValue = true
-    standardOutput = new ByteArrayOutputStream()
-    errorOutput = standardOutput
-    doLast {
-        if (execResult.exitValue != 0) {
-            throw new GradleException("Process '${commandLine}' finished with non-zero exit value ${execResult.exitValue}:\n\n${standardOutput.toString()}")
-        }
-    }
-}
-
-// Skip unit test for all build variants, unless if it was specifically requested by user.
-// The enabled property for the unit test tasks is reset based on the command line task names just before the task execution.
-// I bet there is a easier/cleaner way to do this, but this gets the job done for now.
-Pattern pattern = Pattern.compile('.*test(.+UnitTest)?.*')
-boolean startTasksIncludeTest = gradle.startParameter.taskNames.any {
-    taskName ->
-        taskName.matches(pattern)
-}
-gradle.taskGraph.beforeTask {
-    Task task ->
-        if (task.name.matches(pattern)) {
-            task.enabled = startTasksIncludeTest
-        }
-}
-
-afterEvaluate {
-    subprojects {
-        if (!hasProperty('android')) {
-            return
-        }
-        android.applicationVariants.all {
-            preBuild.dependsOn rootProject.generateCodeAndResources
-        }
-        android.libraryVariants.all {
-            preBuild.dependsOn rootProject.generateCodeAndResources
-        }
-    }
-}
-
-apply plugin: 'idea'
-
-idea {
-    project {
-        languageLevel = '1.7'
-    }
-
-    module {
-        // Object directories take a huge amount of time for IntelliJ to index.
-        // Exclude them.  Convention is that object directories start with obj.
-        // IntelliJ is clever and will not exclude the parts of the object
-        // directory that are referenced, if there are any.  In practice,
-        // indexing the entirety of the tree is taking too long, so exclude all
-        // but mobile/.
-        def topsrcdirURI = file(topsrcdir).toURI()
-        excludeDirs += files(file(topsrcdir)
-            .listFiles({it.isDirectory()} as FileFilter)
-            .collect({topsrcdirURI.relativize(it.toURI()).toString()}) // Relative paths.
-            .findAll({!it.equals('mobile/')}))
-
-        // If topobjdir is below topsrcdir, hide only some portions of that tree.
-        def topobjdirURI = file(topobjdir).toURI()
-        if (!topsrcdirURI.relativize(topobjdirURI).isAbsolute()) {
-            excludeDirs -= file(topobjdir)
-            excludeDirs += files(file(topobjdir).listFiles())
-            excludeDirs -= file("${topobjdir}/gradle")
-        }
-
-        if (!mozconfig.substs.MOZ_INSTALL_TRACKING) {
-            excludeDirs += file("${topsrcdir}/mobile/android/thirdparty/com/adjust")
-        }
-    }
-}
-
-task wrapper(type: Wrapper) {
-}
@@ -1,108 +0,0 @@
-dnl This Source Code Form is subject to the terms of the Mozilla Public
-dnl License, v. 2.0. If a copy of the MPL was not distributed with this
-dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-AC_DEFUN([MOZ_IOS_PATH_PROG],
-[
-changequote({,})
-_prog_name=ifelse($2, {}, `echo $1 | tr "[:upper:]" "[:lower:]"`, $2)
-changequote([,])
-AC_CACHE_CHECK([for $_prog_name in iOS SDK],
-ac_cv_ios_path_$1,
-[
-_path=`xcrun --sdk $ios_sdk --find $_prog_name 2>/dev/null`
-_res=$?
-if test $_res -ne 0; then
-   AC_MSG_ERROR([Could not find '$_prog_name' in the iOS SDK])
-fi
-ac_cv_ios_path_$1=$_path
-])
-$1="${ac_cv_ios_path_$1}$3"
-])
-
-AC_DEFUN([MOZ_IOS_SDK],
-[
-
-MOZ_ARG_WITH_STRING(ios-sdk,
-[  --with-ios-sdk=TYPE
-                          Type of iOS SDK to use (iphonesimulator, iphoneos)
-                          and optionally version (like iphoneos8.2)],
-    ios_sdk=$withval)
-
-MOZ_ARG_ENABLE_STRING(ios-target,
-                      [  --enable-ios-target=VER (default=8.0)
-                          Set the minimum iOS version needed at runtime],
-                      [_IOS_TARGET=$enableval])
-_IOS_TARGET_DEFAULT=8.0
-
-case "$target" in
-arm*-apple-darwin*)
-    if test -z "$ios_sdk" -o "$ios_sdk" = "yes"; then
-       ios_sdk=iphoneos
-    fi
-    case "$ios_sdk" in
-         iphoneos*)
-                ios_target_arg="-miphoneos-version-min"
-                ;;
-         *)
-                AC_MSG_ERROR([Only 'iphoneos' SDKs are valid when targeting iOS device, don't know what to do with '$ios_sdk'.])
-                ;;
-    esac
-    ;;
-*-apple-darwin*)
-    ios_target_arg="-mios-simulator-version-min"
-    case "$ios_sdk" in
-         # Empty SDK is okay, this might be an OS X desktop build.
-         ""|iphonesimulator*)
-                ;;
-         # Default to iphonesimulator
-         yes)
-                ios_sdk=iphonesimulator
-                ;;
-         *)
-                AC_MSG_ERROR([Only 'iphonesimulator' SDKs are valid when targeting iOS simulator.])
-                ;;
-    esac
-    ;;
-esac
-
-
-if test -n "$ios_sdk"; then
-   if test -z "$_IOS_TARGET"; then
-      _IOS_TARGET=$_IOS_TARGET_DEFAULT
-      ios_target_arg="${ios_target_arg}=${_IOS_TARGET}"
-   fi
-   # Ensure that xcrun knows where this SDK is.
-   ios_sdk_path=`xcrun --sdk $ios_sdk --show-sdk-path 2>/dev/null`
-   _ret=$?
-   if test $_ret -ne 0; then
-      AC_MSG_ERROR([iOS SDK '$ios_sdk' could not be found.])
-   fi
-   MOZ_IOS=1
-   export HOST_CC=clang
-   export HOST_CXX=clang++
-   # Add isysroot, arch, and ios target arguments
-   case "$target_cpu" in
-        arm*)
-                ARGS="-arch armv7"
-                ;;
-        *)
-                # Unfortunately simulator builds need this.
-                export CROSS_COMPILE=1
-                ;;
-   esac
-   ARGS=" $ARGS -isysroot $ios_sdk_path $ios_target_arg"
-   # Now find our tools
-   MOZ_IOS_PATH_PROG(CC, clang, $ARGS)
-   MOZ_IOS_PATH_PROG(CXX, clang++, $ARGS)
-   export CPP="$CC -E"
-   export LD="$CXX"
-   MOZ_IOS_PATH_PROG(AR)
-   MOZ_IOS_PATH_PROG(AS, as, $ARGS)
-   MOZ_IOS_PATH_PROG(OTOOL)
-   MOZ_IOS_PATH_PROG(STRIP)
-   export PKG_CONFIG_PATH=${ios_sdk_path}/usr/lib/pkgconfig/
-fi
-
-AC_SUBST(MOZ_IOS)
-])
@@ -27,6 +27,9 @@ fi
 if test "`echo | $AS -o conftest.out -v 2>&1 | grep -c GNU`" != "0"; then
    GNU_AS=1
 fi
+if test "`echo | $AS -o conftest.out -v 2>&1 | grep -c Apple`" != "0"; then
+    GNU_AS=1
+fi
 rm -f conftest.out
 if test "`echo | $LD -v 2>&1 | grep -c GNU`" != "0"; then
    GNU_LD=1
@@ -1,58 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-# Imports
-from __future__ import print_function, unicode_literals
-
-import os
-import sys
-
-# Sanity check
-if not len(sys.argv) > 1:
-    print("Incorrect number of arguments")
-    sys.exit(1)
-
-# Vars
-listConfigure = sys.argv[1:]
-listConfig = []
-strBrandingDirectory = ""
-listViolations = []
-
-# Build a list of set configure variables
-for _value in listConfigure:
-    _splitString = _value.split("=")
-
-    if _splitString[1] == "1":
-        listConfig += [ _splitString[0] ]
-    elif _splitString[0] == "MOZ_BRANDING_DIRECTORY":
-        strBrandingDirectory = _splitString[1]
-
-# Only applies if using Official Branding or specific branding directories
-if ('MOZ_OFFICIAL_BRANDING' in listConfig) or (strBrandingDirectory.endswith("branding/official")) or (strBrandingDirectory.endswith("branding/unstable")):
-    # Applies to Pale Moon and Basilisk
-    if ('MC_BASILISK' in listConfig) or ('MC_PALEMOON' in listConfig):
-        listViolations += [
-            'MOZ_SYSTEM_JPEG',
-            'MOZ_SYSTEM_ZLIB',
-            'MOZ_SYSTEM_BZ2',
-            'MOZ_SYSTEM_JEMALLOC'
-        ]
-        
-    # Applies to Pale Moon Only
-    if 'MC_PALEMOON' in listConfig:
-        listViolations += [
-            'MOZ_EME',
-            'MOZ_WEBRTC'
-        ]
-    
-    # Iterate through enabled violations and output 1 to DIRECTIVE4 if any are found
-    for _value in listViolations:
-        if _value in listConfig:
-            sys.stdout.write("1")
-            sys.exit(1)
-
-# Exit outputting nothing to DIRECTIVE4 being empty because there are no violations
-sys.exit(0)
-
-
@@ -1,54 +0,0 @@
-.. _build_cppeclipse:
-
-=====================
-Cpp Eclipse Projects
-=====================
-
-For additional information on using Eclipse CDT see
-`the MDN page
-<https://developer.mozilla.org/en-US/docs/Eclipse_CDT>`_.
-
-The build system contains alpha support for generating C++ Eclipse
-project files to aid with development.
-
-Please report bugs to bugzilla and make them depend on bug 973770.
-
-To generate a C++ Eclipse project files, you'll need to have a fully
-built tree::
-
-   mach build
-
-Then, simply generate the Eclipse build backend::
-
-   mach build-backend -b CppEclipse
-
-If all goes well, the path to the generated workspace should be
-printed.
-
-To use the generated Eclipse project files, you'll need to
-have a Eclipse CDT 8.3 (We plan to follow the latest Eclipse release)
-`Eclipse CDT plugin
-<https://www.eclipse.org/cdt/>`_
-installed. You can then import all the projects into Eclipse using
-*File > Import ... > General > Existing Projects into Workspace*
-only- if you have not ran the background indexer.
-
-Updating Project Files
-======================
-
-As you pull and update the source tree, your C++ Eclipse files may
-fall out of sync with the build configuration. The tree should still
-build fine from within Eclipse, but source files may be missing and in
-rare circumstances Eclipse's index may not have the proper build
-configuration.
-
-To account for this, you'll want to periodically regenerate the
-Eclipse project files. You can do this by running ``mach build
-&& mach build-backend -b CppEclipse`` from the
-command line.
-
-Currently, regeneration rewrites the original project files. **If
-you've made any customizations to the projects, they will likely get
-overwritten.** We would like to improve this user experience in the
-future.
-
@@ -28,14 +28,6 @@ Important Concepts
   locales
   rust

-integrated development environment (IDE)
-========================================
-.. toctree::
-   :maxdepth: 1
-
-   cppeclipse
-   visualstudio
-
 mozbuild
 ========

@@ -5,41 +5,44 @@ Supported Configurations
 ========================

 This page attempts to document supported build configurations.
+For more up-to-date information please go to http://developer.palemoon.org/

 Windows
 =======

-We support building on Windows XP and newer operating systems using
-Visual Studio 2010 and newer.
+We support building on Windows 7 and newer operating systems using
+Visual Studio 2015 U3.

-The following are not fully supported by Mozilla (but may work):
+The following are not fully supported (but may work):

-* Building without the latest *MozillaBuild* Windows development
-  environment
+* Building with a *MozillaBuild* Windows development
+  environment not mentioned on the developer documentation site.
 * Building with Mingw or any other non-Visual Studio toolchain.

 OS X
 ====
-
-We support building on OS X 10.6 and newer with the OS X 10.6 SDK.
+(This section needs updating)
+We support building on OS X 10.8 and newer with the OS X 10.8 SDK.

 The tree should build with the following OS X releases and SDK versions:

-* 10.6 Snow Leopard
-* 10.7 Lion
 * 10.8 Mountain Lion
 * 10.9 Mavericks
+* 10.10 Yosemite
+* 10.11 El Capitan
+* 10.12 Sierra
+* 10.13 High Sierra
+* 10.14 Mojave
+* 10.15 Catalina
+* 11 Big Sur (Including Apple ARM SoC)

-The tree requires building with Clang 3.3 and newer. This corresponds to
-version of 4.2 of Apple's Clang that ships with Xcode. This corresponds
-to Xcode 4.6 and newer. Xcode 4.6 only runs on OS X 10.7.4 and newer.
-So, OS X 10.6 users will need to install a non-Apple toolchain. Running
-``mach bootstrap`` should install an appropriate toolchain from Homebrew
-or MacPorts automatically.
+The tree requires building with Apple's Clang 4.2 that ships with Xcode.
+This corresponds to Xcode 4.6 and newer. Xcode 4.6 only runs on OS X 10.7.4
+and newer.

-The tree should build with GCC 4.4 and newer on OS X. However, this
+The tree should build with GCC 7.1 and newer on OS X. However, this
 build configuration isn't as widely used (and differs from what Mozilla
-uses to produce OS X builds), so it's recommended to stick with Clang.
+uses to produce OS X builds).

 Linux
 =====
@@ -47,9 +50,6 @@ Linux
 Linux 2.6 and later kernels are supported.

 Most distributions are supported as long as the proper package
-dependencies are in place. Running ``mach bootstrap`` should install
-packages for popular Linux distributions. ``configure`` will typically
+dependencies are in place. ``configure`` will typically
 detect missing dependencies and inform you how to disable features to
 work around unsatisfied dependencies.
-
-Clang 3.3 or GCC 4.4 is required to build the tree.
@@ -1,100 +0,0 @@
-.. _build_visualstudio:
-
-======================
-Visual Studio Projects
-======================
-
-The build system contains alpha support for generating Visual Studio
-project files to aid with development.
-
-To generate Visual Studio project files, you'll need to have a configured tree::
-
-   mach configure
-
-(If you have built recently, your tree is already configured.)
-
-Then, simply generate the Visual Studio build backend::
-
-   mach build-backend -b VisualStudio
-
-If all goes well, the path to the generated Solution (``.sln``) file should be
-printed. You should be able to open that solution with Visual Studio 2010 or
-newer.
-
-Currently, output is hard-coded to the Visual Studio 2010 format. If you open
-the solution in a newer Visual Studio release, you will be prompted to upgrade
-projects. Simply click through the wizard to do that.
-
-Structure of Solution
-=====================
-
-The Visual Studio solution consists of hundreds of projects spanning thousands
-of files. To help with organization, the solution is divided into the following
-trees/folders:
-
-Build Targets
-   This folder contains common build targets. The *full* project is used to
-   perform a full build. The *binaries* project is used to build just binaries.
-   The *visual-studio* project can be built to regenerate the Visual Studio
-   project files.
-
-   Performing the *clean* action on any of these targets will clean the
-   *entire* build output.
-
-Binaries
-   This folder contains common binaries that can be executed from within
-   Visual Studio. If you are building the Firefox desktop application,
-   the *firefox* project will launch firefox.exe. You probably want one of
-   these set to your startup project.
-
-Libraries
-   This folder contains entries for each static library that is produced as
-   part of the build. These roughly correspond to each directory in the tree
-   containing C/C++. e.g. code from ``dom/base`` will be contained in the
-   ``dom_base`` project.
-
-   These projects don't do anything when built. If you build a project here,
-   the *binaries* build target project is built.
-
-Updating Project Files
-======================
-
-As you pull and update the source tree, your Visual Studio files may fall out
-of sync with the build configuration. The tree should still build fine from
-within Visual Studio. But source files may be missing and IntelliSense may not
-have the proper build configuration.
-
-To account for this, you'll want to periodically regenerate the Visual Studio
-project files. You can do this within Visual Studio by building the
-``Build Targets :: visual-studio`` project or by running
-``mach build-backend -b VisualStudio`` from the command line.
-
-Currently, regeneration rewrites the original project files. **If you've made
-any customizations to the solution or projects, they will likely get
-overwritten.** We would like to improve this user experience in the
-future.
-
-Moving Project Files Around
-===========================
-
-The produced Visual Studio solution and project files should be portable.
-If you want to move them to a non-default directory, they should continue
-to work from wherever they are. If they don't, please file a bug.
-
-Invoking mach through Visual Studio
-===================================
-
-It's possible to build the tree via Visual Studio. There is some light magic
-involved here.
-
-Alongside the Visual Studio project files is a batch script named ``mach.bat``.
-This batch script sets the environment variables present in your *MozillaBuild*
-development environment at the time of Visual Studio project generation
-and invokes *mach* inside an msys shell with the arguments specified to the
-batch script. This script essentially allows you to invoke mach commands
-inside the MozillaBuild environment without having to load MozillaBuild.
-
-While projects currently only utilize the ``mach build`` command, the batch
-script does not limit it's use: any mach command can be invoked. Developers
-may abuse this fact to add custom projects and commands that invoke other
-mach commands.
@@ -16,7 +16,7 @@ if os == 'WINNT':
 flavors = {
    'WINNT': 'win',
    'Linux': 'linux',
-    'Darwin': 'mac' if CONFIG['MOZ_WIDGET_TOOLKIT'] == 'cocoa' else 'ios',
+    'Darwin': 'mac',
    'SunOS': 'solaris',
    'GNU/kFreeBSD': 'freebsd',
    'DragonFly': 'dragonfly',
@@ -100,7 +100,6 @@ MACH_MODULES = [
    'python/mach/mach/commands/settings.py',
    'python/compare-locales/mach_commands.py',
    'python/mozbuild/mozbuild/mach_commands.py',
-    'python/mozbuild/mozbuild/backend/mach_commands.py',
    'python/mozbuild/mozbuild/compilation/codecomplete.py',
    'python/mozbuild/mozbuild/frontend/mach_commands.py',
    'services/common/tests/mach_commands.py',
@@ -97,10 +97,3 @@ if CONFIG['MOZ_VALGRIND']:
        'valgrind/i386-redhat-linux-gnu.sup',
        'valgrind/x86_64-redhat-linux-gnu.sup',
    ]
-
-if CONFIG['MOZ_ARTIFACT_BUILDS']:
-    # Ensure a pre-built interfaces.xpt installed to the objdir by the artifact
-    # code is included by the top-level chrome.manifest.
-    EXTRA_COMPONENTS += [
-        'prebuilt-interfaces.manifest',
-    ]
@@ -321,9 +321,6 @@ def split_triplet(triplet):
    elif os.startswith('darwin'):
        canonical_kernel = 'Darwin'
        canonical_os = 'OSX'
-    elif os.startswith('ios'):
-        canonical_kernel = 'Darwin'
-        canonical_os = 'iOS'
    elif os.startswith('dragonfly'):
        canonical_os = canonical_kernel = 'DragonFly'
    elif os.startswith('freebsd'):
@@ -455,10 +452,6 @@ add_old_configure_arg(host_for_old_configure)
@depends(host, target)
 def target_for_old_configure(host, target):
    target_alias = target.alias
-    # old-configure does plenty of tests against $target and $target_os
-    # and expects darwin for iOS, so make it happy.
-    if target.os == 'iOS':
-        target_alias = target_alias.replace('-ios', '-darwin')
    return '--target=%s' % target_alias

 add_old_configure_arg(target_for_old_configure)
@@ -383,57 +383,65 @@ def check_compiler(compiler, language, target):
    )


-@imports(_from='collections', _import='defaultdict')
+@imports(_from='__builtin__', _import='open')
+@imports('json')
+@imports('subprocess')
+@imports('sys')
+def get_vc_paths(topsrcdir):
+    def vswhere(args):
+        encoding = 'mbcs' if sys.platform == 'win32' else 'utf-8'
+        return json.loads(subprocess.check_output([os.path.join(topsrcdir, 'build/win32/vswhere.exe'), '-format', 'json'] + args).decode(encoding, 'replace'))
+
+    # Can't pass -requires with -legacy, so query each separately.
+    # Legacy versions first (VS2015)
+    for install in vswhere(['-legacy', '-version', '[14.0,15.0)']):
+        version = Version(install['installationVersion'])
+        # Skip anything older than VS2015.
+        if version < '14':
+            continue
+        path = install['installationPath']
+
+        yield (Version(install['installationVersion']), {
+            'x64': [os.path.join(path, r'VC\bin\amd64')],
+            # The x64->x86 cross toolchain requires DLLs from the native x64 toolchain.
+            'x86': [os.path.join(path, r'VC\bin\amd64_x86'), os.path.join (path, r'VC\bin\amd64')],
+        })
+    # Then VS2017 and newer.
+    for install in vswhere(['-requires', 'Microsoft.VisualStudio.Component.VC.Tools.x86.x64']):
+        path = install['installationPath']
+        tools_version = open(os.path.join(path, r'VC\Auxiliary\Build\Microsoft.VCToolsVersion.default.txt'), 'rb').read().strip()
+        tools_path = os.path.join(path, r'VC\Tools\MSVC', tools_version, r'bin\HostX64')
+        yield (Version(install['installationVersion']), {
+            'x64': [os.path.join(tools_path, 'x64')],
+            # The x64->x86 cross toolchain requires DLLs from the native x64 toolchain.
+            'x86': [os.path.join(tools_path, 'x86'), os.path.join(tools_path, 'x64')],
+        })
+
+
+@depends(host, target, check_build_environment)
@imports(_from='__builtin__', _import='sorted')
-def get_vc_paths(base):
-    vc = defaultdict(lambda: defaultdict(dict))
-    subkey = r'Microsoft\VisualStudio\VC\*\*\*\Compiler'
-    for v, h, t, p in get_registry_values(base + '\\' + subkey):
-        vc[v][h][t] = p
-    if not vc:
-        return
-    version, data = sorted(vc.iteritems(), key=lambda x: Version(x[0]))[-1]
-    return data
-
-
-@depends(host)
+@imports(_from='operator', _import='itemgetter')
@imports('platform')
-def vc_compiler_path(host):
+def vc_compiler_path(host, target, env):
    if host.kernel != 'WINNT':
        return
-    vc_host = {
-        'x86': 'x86',
-        'AMD64': 'x64',
-    }.get(platform.machine())
-    if vc_host is None:
-        return
    vc_target = {
        'x86': 'x86',
        'x86_64': 'x64',
        'arm': 'arm',
-    }.get(host.cpu)
+    }.get(target.cpu)
    if vc_target is None:
        return
-
-    base_key = r'HKEY_LOCAL_MACHINE\SOFTWARE'
-    data = get_vc_paths(base_key)
-    if not data:
-        data = get_vc_paths(base_key + r'\Wow6432Node')
-    if not data:
+    all_versions = sorted(get_vc_paths(env.topsrcdir), key=itemgetter(0))
+    if not all_versions:
        return

-    path = data.get(vc_host, {}).get(vc_target)
-    if not path and vc_host == 'x64':
-        vc_host = 'x86'
-        path = data.get(vc_host, {}).get(vc_target)
-    if not path:
+    # Choose the newest version.
+    data = all_versions[-1][1]
+    paths = data.get(vc_target)
+    if not paths:
        return
-    path = os.path.dirname(path)
-    if vc_host != vc_target:
-        other_path = data.get(vc_host, {}).get(vc_host)
-        if other_path:
-            return (path, os.path.dirname(other_path))
-    return (path,)
+    return paths


@depends(vc_compiler_path)
@@ -261,13 +261,17 @@ def vc_path(c_compiler):
            break
    return result

-
-@depends_win(vc_path)
+@depends_win(vc_path, c_compiler)
@checking('for the Debug Interface Access SDK', lambda x: x or 'not found')
@imports(_from='os.path', _import='isdir')
-def dia_sdk_dir(vc_path):
+def dia_sdk_dir(vc_path, c_compiler):
    if vc_path:
-        path = os.path.join(os.path.dirname(vc_path), 'DIA SDK')
+        if c_compiler.version < '19.10':
+            path = os.path.join(os.path.dirname(vc_path), 'DIA SDK')
+        else:
+            # This would be easier if we had the installationPath that
+            # get_vc_paths works with, since 'DIA SDK' is relative to that.
+             path = os.path.normpath(os.path.join(vc_path, r'..\..\..\..\DIA SDK'))
        if isdir(path):
            return path

@@ -309,29 +313,36 @@ def include_path(vc_path, windows_sdk_dir, ucrt_sdk_dir, dia_sdk_dir):
 set_config('INCLUDE', include_path)


-@depends_win(target, vc_path, valid_windows_sdk_dir, valid_ucrt_sdk_dir, dia_sdk_dir)
+@depends_win(target, c_compiler, vc_path, valid_windows_sdk_dir, valid_ucrt_sdk_dir, dia_sdk_dir)
@imports('os')
-def lib_path(target, vc_path, windows_sdk_dir, ucrt_sdk_dir, dia_sdk_dir):
+def lib_path(target, c_compiler, vc_path, windows_sdk_dir, ucrt_sdk_dir, dia_sdk_dir):
    if not vc_path:
        return
-    vc_target = {
-        'x86': '',
-        'x86_64': 'amd64',
-        'arm': 'arm',
-    }.get(target.cpu)
-    if vc_target is None:
-        return
-    # As vc_target can be '', and os.path.join will happily use the empty
-    # string, leading to a string ending with a backslash, that Make will
-    # interpret as a "string continues on next line" indicator, use variable
-    # args.
-    vc_target = (vc_target,) if vc_target else ()
    sdk_target = {
        'x86': 'x86',
        'x86_64': 'x64',
        'arm': 'arm',
    }.get(target.cpu)

+    old_target = {
+        'x86': '',
+        'x86_64': 'amd64',
+        'arm': 'arm',
+    }.get(target.cpu)
+    if old_target is None:
+        return
+    # As old_target can be '', and os.path.join will happily use the empty
+    # string, leading to a string ending with a backslash, that Make will
+    # interpret as a "string continues on next line" indicator, use variable
+    # args.
+    old_target = (old_target,) if old_target else ()
+    if c_compiler.version < '19.10':
+        # MSVC2015
+        vc_target = old_target
+    else:
+        # MSVC2017 switched to use the same target naming as the sdk.
+        vc_target = (sdk_target,)
+
    atlmfc_dir = os.path.join(vc_path, 'atlmfc', 'lib', *vc_target)
    if not os.path.isdir(atlmfc_dir):
        die('Cannot find the ATL/MFC libraries in the Visual C++ directory (%s). '
@@ -349,7 +360,9 @@ def lib_path(target, vc_path, windows_sdk_dir, ucrt_sdk_dir, dia_sdk_dir):
        os.path.join(ucrt_sdk_dir.lib, 'ucrt', sdk_target),
    ))
    if dia_sdk_dir:
-        libs.append(os.path.join(dia_sdk_dir, 'lib', *vc_target))
+        # For some reason the DIA SDK still uses the old-style targets
+        # even in a newer MSVC.
+        libs.append(os.path.join(dia_sdk_dir, 'lib', *old_target))
    # Set in the environment for old-configure
    libs = os.pathsep.join(libs)
    os.environ['LIB'] = libs
@@ -58,7 +58,6 @@ const URLs = new Map([
    ["data:text/html,Hi", true, false, true],
    ["view-source:data:text/html,Hi", false, false, true],
    ["javascript:alert('hi')", true, false, true],
-    ["moz://a", false, false, true],
    ["about:test-chrome-privs", false, false, true],
    ["about:test-unknown-unlinkable", false, false, true],
    ["about:test-content-unlinkable", false, false, true],
@@ -80,7 +79,6 @@ const URLs = new Map([
    ["data:text/html,Hi", true, false, true],
    ["view-source:data:text/html,Hi", false, false, true],
    ["javascript:alert('hi')", true, false, true],
-    ["moz://a", false, false, true],
    ["about:test-chrome-privs", false, false, true],
    ["about:test-unknown-unlinkable", false, false, true],
    ["about:test-content-unlinkable", false, false, true],
@@ -102,7 +100,6 @@ const URLs = new Map([
    ["data:text/html,Hi", true, false, true],
    ["view-source:data:text/html,Hi", true, false, true],
    ["javascript:alert('hi')", true, false, true],
-    ["moz://a", false, false, true],
    ["about:test-chrome-privs", false, false, true],
    ["about:test-unknown-unlinkable", false, false, true],
    ["about:test-content-unlinkable", false, false, true],
@@ -160,7 +160,7 @@ nsChromeProtocolHandler::NewChannel2(nsIURI* aURI,
        file->Exists(&exists);
        if (!exists) {
            nsAutoCString path;
-            file->GetPersistentDescriptor(path); 
+            file->GetNativePath(path);
            printf("Chrome file doesn't exist: %s\n", path.get());
        }
    }
@@ -45,7 +45,7 @@ endif # WINNT
 ifndef INCLUDED_AUTOCONF_MK
 default::
 else
-TIERS := $(if $(MOZ_ARTIFACT_BUILDS),artifact )pre-export export $(if $(COMPILE_ENVIRONMENT),compile )misc libs tools
+TIERS := pre-export export $(if $(COMPILE_ENVIRONMENT),compile )misc libs tools
 endif

 # These defines are used to support the twin-topsrcdir model for comm-central.
@@ -86,12 +86,14 @@ included_inclnames_to_ignore = set([
    'unicode/ucol.h',           # ICU
    'unicode/udat.h',           # ICU
    'unicode/udatpg.h',         # ICU
+    'unicode/udisplaycontext.h',# ICU
    'unicode/uenum.h',          # ICU
    'unicode/uniset.h',         # ICU
-    'unicode/unorm.h',          # ICU
+    'unicode/unorm2.h',         # ICU
    'unicode/unum.h',           # ICU
    'unicode/unumsys.h',        # ICU
    'unicode/upluralrules.h',   # ICU
+    'unicode/ureldatefmt.h',    # ICU
    'unicode/ustring.h',        # ICU
    'unicode/utypes.h',         # ICU
    'vtune/VTuneWrapper.h'      # VTune
@@ -377,8 +377,20 @@ endif # WINNT

 ifdef _MSC_VER
 ifeq ($(CPU_ARCH),x86_64)
-# set stack to 2MB on x64 build.  See bug 582910
-WIN32_EXE_LDFLAGS	+= -STACK:2097152
+# Normal operation on 64-bit Windows needs 2 MB of stack. (Bug 582910)
+# ASAN requires 6 MB of stack.
+# Setting the stack to 8 MB to match the capability of other systems
+# to deal with frame construction for unreasonably deep DOM trees
+# with worst-case styling. This uses address space unnecessarily for
+# non-main threads, but that should be tolerable on 64-bit systems.
+WIN32_EXE_LDFLAGS      += -STACK:8388608
+else
+# Since this setting affects the default stack size for non-main
+# threads, too, to avoid burning the address space, increase only
+# 512 KB over the default. Just enough to be able to deal with
+# reasonable styling applied to DOM trees whose depth is near what
+# Blink's HTML parser can output.
+WIN32_EXE_LDFLAGS      += -STACK:1572864
 endif
 endif

@@ -121,6 +121,8 @@ else:
            DEFINES['SYMBOL_UNDERSCORE'] = True
        else:
            ffi_srcs = ('ffi.c', 'darwin.S', 'ffi64.c', 'darwin64.S')
+    elif CONFIG['FFI_TARGET'] == 'AARCH64_DARWIN':
+        ffi_srcs = ('sysv.S', 'ffi.c')

    SOURCES += [
        '/js/src/ctypes/libffi/src/%s/%s' % (CONFIG['FFI_TARGET_DIR'], s)
@@ -4,26 +4,28 @@ SOURCES += [
   '/intl/icu/source/common/bmpset.cpp',
   '/intl/icu/source/common/brkeng.cpp',
   '/intl/icu/source/common/brkiter.cpp',
+   '/intl/icu/source/common/bytesinkutil.cpp',
   '/intl/icu/source/common/bytestream.cpp',
   '/intl/icu/source/common/bytestrie.cpp',
   '/intl/icu/source/common/bytestriebuilder.cpp',
   '/intl/icu/source/common/bytestrieiterator.cpp',
   '/intl/icu/source/common/caniter.cpp',
+   '/intl/icu/source/common/characterproperties.cpp',
   '/intl/icu/source/common/chariter.cpp',
   '/intl/icu/source/common/charstr.cpp',
-   '/intl/icu/source/common/cmemory.c',
+   '/intl/icu/source/common/cmemory.cpp',
   '/intl/icu/source/common/cstr.cpp',
-   '/intl/icu/source/common/cstring.c',
-   '/intl/icu/source/common/cwchar.c',
+   '/intl/icu/source/common/cstring.cpp',
+   '/intl/icu/source/common/cwchar.cpp',
   '/intl/icu/source/common/dictbe.cpp',
   '/intl/icu/source/common/dictionarydata.cpp',
   '/intl/icu/source/common/dtintrv.cpp',
+   '/intl/icu/source/common/edits.cpp',
   '/intl/icu/source/common/errorcode.cpp',
   '/intl/icu/source/common/filteredbrk.cpp',
   '/intl/icu/source/common/filterednormalizer2.cpp',
-   '/intl/icu/source/common/icudataver.c',
+   '/intl/icu/source/common/icudataver.cpp',
   '/intl/icu/source/common/icuplug.cpp',
-   '/intl/icu/source/common/listformatter.cpp',
   '/intl/icu/source/common/loadednormalizer2impl.cpp',
   '/intl/icu/source/common/locavailable.cpp',
   '/intl/icu/source/common/locbased.cpp',
@@ -31,7 +33,7 @@ SOURCES += [
   '/intl/icu/source/common/locdspnm.cpp',
   '/intl/icu/source/common/locid.cpp',
   '/intl/icu/source/common/loclikely.cpp',
-   '/intl/icu/source/common/locmap.c',
+   '/intl/icu/source/common/locmap.cpp',
   '/intl/icu/source/common/locresdata.cpp',
   '/intl/icu/source/common/locutil.cpp',
   '/intl/icu/source/common/messagepattern.cpp',
@@ -42,10 +44,11 @@ SOURCES += [
   '/intl/icu/source/common/patternprops.cpp',
   '/intl/icu/source/common/pluralmap.cpp',
   '/intl/icu/source/common/propname.cpp',
-   '/intl/icu/source/common/propsvec.c',
+   '/intl/icu/source/common/propsvec.cpp',
   '/intl/icu/source/common/punycode.cpp',
   '/intl/icu/source/common/putil.cpp',
   '/intl/icu/source/common/rbbi.cpp',
+   '/intl/icu/source/common/rbbi_cache.cpp',
   '/intl/icu/source/common/rbbidata.cpp',
   '/intl/icu/source/common/rbbinode.cpp',
   '/intl/icu/source/common/rbbirb.cpp',
@@ -67,68 +70,70 @@ SOURCES += [
   '/intl/icu/source/common/servslkf.cpp',
   '/intl/icu/source/common/sharedobject.cpp',
   '/intl/icu/source/common/simpleformatter.cpp',
+   '/intl/icu/source/common/static_unicode_sets.cpp',
   '/intl/icu/source/common/stringpiece.cpp',
   '/intl/icu/source/common/stringtriebuilder.cpp',
-   '/intl/icu/source/common/uarrsort.c',
-   '/intl/icu/source/common/ubidi.c',
-   '/intl/icu/source/common/ubidi_props.c',
-   '/intl/icu/source/common/ubidiln.c',
-   '/intl/icu/source/common/ubiditransform.c',
-   '/intl/icu/source/common/ubidiwrt.c',
+   '/intl/icu/source/common/uarrsort.cpp',
+   '/intl/icu/source/common/ubidi.cpp',
+   '/intl/icu/source/common/ubidi_props.cpp',
+   '/intl/icu/source/common/ubidiln.cpp',
+   '/intl/icu/source/common/ubiditransform.cpp',
+   '/intl/icu/source/common/ubidiwrt.cpp',
   '/intl/icu/source/common/ubrk.cpp',
   '/intl/icu/source/common/ucase.cpp',
   '/intl/icu/source/common/ucasemap.cpp',
   '/intl/icu/source/common/ucasemap_titlecase_brkiter.cpp',
-   '/intl/icu/source/common/ucat.c',
-   '/intl/icu/source/common/uchar.c',
+   '/intl/icu/source/common/ucat.cpp',
+   '/intl/icu/source/common/uchar.cpp',
   '/intl/icu/source/common/ucharstrie.cpp',
   '/intl/icu/source/common/ucharstriebuilder.cpp',
   '/intl/icu/source/common/ucharstrieiterator.cpp',
   '/intl/icu/source/common/uchriter.cpp',
   '/intl/icu/source/common/ucln_cmn.cpp',
-   '/intl/icu/source/common/ucmndata.c',
-   '/intl/icu/source/common/ucnv.c',
+   '/intl/icu/source/common/ucmndata.cpp',
+   '/intl/icu/source/common/ucnv.cpp',
   '/intl/icu/source/common/ucnv2022.cpp',
   '/intl/icu/source/common/ucnv_bld.cpp',
-   '/intl/icu/source/common/ucnv_cb.c',
-   '/intl/icu/source/common/ucnv_cnv.c',
-   '/intl/icu/source/common/ucnv_ct.c',
-   '/intl/icu/source/common/ucnv_err.c',
+   '/intl/icu/source/common/ucnv_cb.cpp',
+   '/intl/icu/source/common/ucnv_cnv.cpp',
+   '/intl/icu/source/common/ucnv_ct.cpp',
+   '/intl/icu/source/common/ucnv_err.cpp',
   '/intl/icu/source/common/ucnv_ext.cpp',
   '/intl/icu/source/common/ucnv_io.cpp',
-   '/intl/icu/source/common/ucnv_lmb.c',
-   '/intl/icu/source/common/ucnv_set.c',
-   '/intl/icu/source/common/ucnv_u16.c',
-   '/intl/icu/source/common/ucnv_u32.c',
-   '/intl/icu/source/common/ucnv_u7.c',
-   '/intl/icu/source/common/ucnv_u8.c',
+   '/intl/icu/source/common/ucnv_lmb.cpp',
+   '/intl/icu/source/common/ucnv_set.cpp',
+   '/intl/icu/source/common/ucnv_u16.cpp',
+   '/intl/icu/source/common/ucnv_u32.cpp',
+   '/intl/icu/source/common/ucnv_u7.cpp',
+   '/intl/icu/source/common/ucnv_u8.cpp',
   '/intl/icu/source/common/ucnvbocu.cpp',
-   '/intl/icu/source/common/ucnvdisp.c',
-   '/intl/icu/source/common/ucnvhz.c',
-   '/intl/icu/source/common/ucnvisci.c',
-   '/intl/icu/source/common/ucnvlat1.c',
+   '/intl/icu/source/common/ucnvdisp.cpp',
+   '/intl/icu/source/common/ucnvhz.cpp',
+   '/intl/icu/source/common/ucnvisci.cpp',
+   '/intl/icu/source/common/ucnvlat1.cpp',
   '/intl/icu/source/common/ucnvmbcs.cpp',
-   '/intl/icu/source/common/ucnvscsu.c',
+   '/intl/icu/source/common/ucnvscsu.cpp',
   '/intl/icu/source/common/ucnvsel.cpp',
   '/intl/icu/source/common/ucol_swp.cpp',
+   '/intl/icu/source/common/ucptrie.cpp',
   '/intl/icu/source/common/ucurr.cpp',
   '/intl/icu/source/common/udata.cpp',
-   '/intl/icu/source/common/udatamem.c',
-   '/intl/icu/source/common/udataswp.c',
-   '/intl/icu/source/common/uenum.c',
-   '/intl/icu/source/common/uhash.c',
+   '/intl/icu/source/common/udatamem.cpp',
+   '/intl/icu/source/common/udataswp.cpp',
+   '/intl/icu/source/common/uenum.cpp',
+   '/intl/icu/source/common/uhash.cpp',
   '/intl/icu/source/common/uhash_us.cpp',
   '/intl/icu/source/common/uidna.cpp',
   '/intl/icu/source/common/uinit.cpp',
-   '/intl/icu/source/common/uinvchar.c',
+   '/intl/icu/source/common/uinvchar.cpp',
   '/intl/icu/source/common/uiter.cpp',
-   '/intl/icu/source/common/ulist.c',
-   '/intl/icu/source/common/ulistformatter.cpp',
+   '/intl/icu/source/common/ulist.cpp',
   '/intl/icu/source/common/uloc.cpp',
   '/intl/icu/source/common/uloc_keytype.cpp',
-   '/intl/icu/source/common/uloc_tag.c',
-   '/intl/icu/source/common/umapfile.c',
-   '/intl/icu/source/common/umath.c',
+   '/intl/icu/source/common/uloc_tag.cpp',
+   '/intl/icu/source/common/umapfile.cpp',
+   '/intl/icu/source/common/umath.cpp',
+   '/intl/icu/source/common/umutablecptrie.cpp',
   '/intl/icu/source/common/umutex.cpp',
   '/intl/icu/source/common/unames.cpp',
   '/intl/icu/source/common/unifiedcache.cpp',
@@ -148,11 +153,11 @@ SOURCES += [
   '/intl/icu/source/common/unormcmp.cpp',
   '/intl/icu/source/common/uobject.cpp',
   '/intl/icu/source/common/uprops.cpp',
-   '/intl/icu/source/common/ures_cnv.c',
+   '/intl/icu/source/common/ures_cnv.cpp',
   '/intl/icu/source/common/uresbund.cpp',
   '/intl/icu/source/common/uresdata.cpp',
-   '/intl/icu/source/common/usc_impl.c',
-   '/intl/icu/source/common/uscript.c',
+   '/intl/icu/source/common/usc_impl.cpp',
+   '/intl/icu/source/common/uscript.cpp',
   '/intl/icu/source/common/uscript_props.cpp',
   '/intl/icu/source/common/uset.cpp',
   '/intl/icu/source/common/uset_props.cpp',
@@ -166,23 +171,24 @@ SOURCES += [
   '/intl/icu/source/common/ustrcase.cpp',
   '/intl/icu/source/common/ustrcase_locale.cpp',
   '/intl/icu/source/common/ustrenum.cpp',
-   '/intl/icu/source/common/ustrfmt.c',
+   '/intl/icu/source/common/ustrfmt.cpp',
   '/intl/icu/source/common/ustring.cpp',
   '/intl/icu/source/common/ustrtrns.cpp',
   '/intl/icu/source/common/utext.cpp',
-   '/intl/icu/source/common/utf_impl.c',
+   '/intl/icu/source/common/utf_impl.cpp',
   '/intl/icu/source/common/util.cpp',
   '/intl/icu/source/common/util_props.cpp',
-   '/intl/icu/source/common/utrace.c',
+   '/intl/icu/source/common/utrace.cpp',
   '/intl/icu/source/common/utrie.cpp',
   '/intl/icu/source/common/utrie2.cpp',
   '/intl/icu/source/common/utrie2_builder.cpp',
+   '/intl/icu/source/common/utrie_swap.cpp',
   '/intl/icu/source/common/uts46.cpp',
-   '/intl/icu/source/common/utypes.c',
+   '/intl/icu/source/common/utypes.cpp',
   '/intl/icu/source/common/uvector.cpp',
   '/intl/icu/source/common/uvectr32.cpp',
   '/intl/icu/source/common/uvectr64.cpp',
-   '/intl/icu/source/common/wintz.c',
+   '/intl/icu/source/common/wintz.cpp',
 ]

 EXPORTS.unicode += [
@@ -192,17 +198,19 @@ EXPORTS.unicode += [
   '/intl/icu/source/common/unicode/bytestrie.h',
   '/intl/icu/source/common/unicode/bytestriebuilder.h',
   '/intl/icu/source/common/unicode/caniter.h',
+   '/intl/icu/source/common/unicode/casemap.h',
+   '/intl/icu/source/common/unicode/char16ptr.h',
   '/intl/icu/source/common/unicode/chariter.h',
   '/intl/icu/source/common/unicode/dbbi.h',
   '/intl/icu/source/common/unicode/docmain.h',
   '/intl/icu/source/common/unicode/dtintrv.h',
+   '/intl/icu/source/common/unicode/edits.h',
   '/intl/icu/source/common/unicode/enumset.h',
   '/intl/icu/source/common/unicode/errorcode.h',
   '/intl/icu/source/common/unicode/filteredbrk.h',
   '/intl/icu/source/common/unicode/icudataver.h',
   '/intl/icu/source/common/unicode/icuplug.h',
   '/intl/icu/source/common/unicode/idna.h',
-   '/intl/icu/source/common/unicode/listformatter.h',
   '/intl/icu/source/common/unicode/localpointer.h',
   '/intl/icu/source/common/unicode/locdspnm.h',
   '/intl/icu/source/common/unicode/locid.h',
@@ -221,6 +229,7 @@ EXPORTS.unicode += [
   '/intl/icu/source/common/unicode/simpleformatter.h',
   '/intl/icu/source/common/unicode/std_string.h',
   '/intl/icu/source/common/unicode/strenum.h',
+   '/intl/icu/source/common/unicode/stringoptions.h',
   '/intl/icu/source/common/unicode/stringpiece.h',
   '/intl/icu/source/common/unicode/stringtriebuilder.h',
   '/intl/icu/source/common/unicode/symtable.h',
@@ -239,6 +248,8 @@ EXPORTS.unicode += [
   '/intl/icu/source/common/unicode/ucnv_err.h',
   '/intl/icu/source/common/unicode/ucnvsel.h',
   '/intl/icu/source/common/unicode/uconfig.h',
+   '/intl/icu/source/common/unicode/ucpmap.h',
+   '/intl/icu/source/common/unicode/ucptrie.h',
   '/intl/icu/source/common/unicode/ucurr.h',
   '/intl/icu/source/common/unicode/udata.h',
   '/intl/icu/source/common/unicode/udisplaycontext.h',
@@ -246,10 +257,10 @@ EXPORTS.unicode += [
   '/intl/icu/source/common/unicode/uidna.h',
   '/intl/icu/source/common/unicode/uiter.h',
   '/intl/icu/source/common/unicode/uldnames.h',
-   '/intl/icu/source/common/unicode/ulistformatter.h',
   '/intl/icu/source/common/unicode/uloc.h',
   '/intl/icu/source/common/unicode/umachine.h',
   '/intl/icu/source/common/unicode/umisc.h',
+   '/intl/icu/source/common/unicode/umutablecptrie.h',
   '/intl/icu/source/common/unicode/unifilt.h',
   '/intl/icu/source/common/unicode/unifunct.h',
   '/intl/icu/source/common/unicode/unimatch.h',
@@ -14,7 +14,6 @@ DEFINES.update(
    UCONFIG_NO_LEGACY_CONVERSION = True,
    UCONFIG_NO_TRANSLITERATION = True,
    UCONFIG_NO_REGULAR_EXPRESSIONS = True,
-    UCONFIG_NO_BREAK_ITERATION = True,

    # We don't need to pass data to and from legacy char* APIs.
    U_CHARSET_IS_UTF8 = True,
@@ -1,6 +1,5 @@
 # THIS FILE IS GENERATED BY /intl/icu_sources_data.py DO NOT EDIT
 SOURCES += [
-   '/intl/icu/source/i18n/affixpatternparser.cpp',
   '/intl/icu/source/i18n/alphaindex.cpp',
   '/intl/icu/source/i18n/anytrans.cpp',
   '/intl/icu/source/i18n/astro.cpp',
@@ -53,23 +52,22 @@ SOURCES += [
   '/intl/icu/source/i18n/datefmt.cpp',
   '/intl/icu/source/i18n/dayperiodrules.cpp',
   '/intl/icu/source/i18n/dcfmtsym.cpp',
-   '/intl/icu/source/i18n/decContext.c',
-   '/intl/icu/source/i18n/decfmtst.cpp',
-   '/intl/icu/source/i18n/decimalformatpattern.cpp',
+   '/intl/icu/source/i18n/decContext.cpp',
   '/intl/icu/source/i18n/decimfmt.cpp',
-   '/intl/icu/source/i18n/decimfmtimpl.cpp',
-   '/intl/icu/source/i18n/decNumber.c',
-   '/intl/icu/source/i18n/digitaffix.cpp',
-   '/intl/icu/source/i18n/digitaffixesandpadding.cpp',
-   '/intl/icu/source/i18n/digitformatter.cpp',
-   '/intl/icu/source/i18n/digitgrouping.cpp',
-   '/intl/icu/source/i18n/digitinterval.cpp',
-   '/intl/icu/source/i18n/digitlst.cpp',
+   '/intl/icu/source/i18n/decNumber.cpp',
+   '/intl/icu/source/i18n/double-conversion-bignum-dtoa.cpp',
+   '/intl/icu/source/i18n/double-conversion-bignum.cpp',
+   '/intl/icu/source/i18n/double-conversion-cached-powers.cpp',
+   '/intl/icu/source/i18n/double-conversion-diy-fp.cpp',
+   '/intl/icu/source/i18n/double-conversion-fast-dtoa.cpp',
+   '/intl/icu/source/i18n/double-conversion-strtod.cpp',
+   '/intl/icu/source/i18n/double-conversion.cpp',
   '/intl/icu/source/i18n/dtfmtsym.cpp',
   '/intl/icu/source/i18n/dtitvfmt.cpp',
   '/intl/icu/source/i18n/dtitvinf.cpp',
   '/intl/icu/source/i18n/dtptngen.cpp',
   '/intl/icu/source/i18n/dtrule.cpp',
+   '/intl/icu/source/i18n/erarules.cpp',
   '/intl/icu/source/i18n/esctrn.cpp',
   '/intl/icu/source/i18n/ethpccal.cpp',
   '/intl/icu/source/i18n/fmtable.cpp',
@@ -86,6 +84,7 @@ SOURCES += [
   '/intl/icu/source/i18n/inputext.cpp',
   '/intl/icu/source/i18n/islamcal.cpp',
   '/intl/icu/source/i18n/japancal.cpp',
+   '/intl/icu/source/i18n/listformatter.cpp',
   '/intl/icu/source/i18n/measfmt.cpp',
   '/intl/icu/source/i18n/measunit.cpp',
   '/intl/icu/source/i18n/measure.cpp',
@@ -95,15 +94,50 @@ SOURCES += [
   '/intl/icu/source/i18n/nfrule.cpp',
   '/intl/icu/source/i18n/nfsubs.cpp',
   '/intl/icu/source/i18n/nortrans.cpp',
+   '/intl/icu/source/i18n/nounit.cpp',
   '/intl/icu/source/i18n/nultrans.cpp',
+   '/intl/icu/source/i18n/number_affixutils.cpp',
+   '/intl/icu/source/i18n/number_asformat.cpp',
+   '/intl/icu/source/i18n/number_capi.cpp',
+   '/intl/icu/source/i18n/number_compact.cpp',
+   '/intl/icu/source/i18n/number_currencysymbols.cpp',
+   '/intl/icu/source/i18n/number_decimalquantity.cpp',
+   '/intl/icu/source/i18n/number_decimfmtprops.cpp',
+   '/intl/icu/source/i18n/number_fluent.cpp',
+   '/intl/icu/source/i18n/number_formatimpl.cpp',
+   '/intl/icu/source/i18n/number_grouping.cpp',
+   '/intl/icu/source/i18n/number_integerwidth.cpp',
+   '/intl/icu/source/i18n/number_longnames.cpp',
+   '/intl/icu/source/i18n/number_mapper.cpp',
+   '/intl/icu/source/i18n/number_modifiers.cpp',
+   '/intl/icu/source/i18n/number_multiplier.cpp',
+   '/intl/icu/source/i18n/number_notation.cpp',
+   '/intl/icu/source/i18n/number_padding.cpp',
+   '/intl/icu/source/i18n/number_patternmodifier.cpp',
+   '/intl/icu/source/i18n/number_patternstring.cpp',
+   '/intl/icu/source/i18n/number_rounding.cpp',
+   '/intl/icu/source/i18n/number_scientific.cpp',
+   '/intl/icu/source/i18n/number_skeletons.cpp',
+   '/intl/icu/source/i18n/number_stringbuilder.cpp',
+   '/intl/icu/source/i18n/number_utils.cpp',
   '/intl/icu/source/i18n/numfmt.cpp',
+   '/intl/icu/source/i18n/numparse_affixes.cpp',
+   '/intl/icu/source/i18n/numparse_compositions.cpp',
+   '/intl/icu/source/i18n/numparse_currency.cpp',
+   '/intl/icu/source/i18n/numparse_decimal.cpp',
+   '/intl/icu/source/i18n/numparse_impl.cpp',
+   '/intl/icu/source/i18n/numparse_parsednumber.cpp',
+   '/intl/icu/source/i18n/numparse_scientific.cpp',
+   '/intl/icu/source/i18n/numparse_stringsegment.cpp',
+   '/intl/icu/source/i18n/numparse_symbols.cpp',
+   '/intl/icu/source/i18n/numparse_validators.cpp',
+   '/intl/icu/source/i18n/numrange_fluent.cpp',
+   '/intl/icu/source/i18n/numrange_impl.cpp',
   '/intl/icu/source/i18n/numsys.cpp',
   '/intl/icu/source/i18n/olsontz.cpp',
   '/intl/icu/source/i18n/persncal.cpp',
-   '/intl/icu/source/i18n/pluralaffix.cpp',
   '/intl/icu/source/i18n/plurfmt.cpp',
   '/intl/icu/source/i18n/plurrule.cpp',
-   '/intl/icu/source/i18n/precision.cpp',
   '/intl/icu/source/i18n/quant.cpp',
   '/intl/icu/source/i18n/quantityformatter.cpp',
   '/intl/icu/source/i18n/rbnf.cpp',
@@ -130,7 +164,6 @@ SOURCES += [
   '/intl/icu/source/i18n/selfmt.cpp',
   '/intl/icu/source/i18n/sharedbreakiterator.cpp',
   '/intl/icu/source/i18n/simpletz.cpp',
-   '/intl/icu/source/i18n/smallintformatter.cpp',
   '/intl/icu/source/i18n/smpdtfmt.cpp',
   '/intl/icu/source/i18n/smpdtfst.cpp',
   '/intl/icu/source/i18n/sortkey.cpp',
@@ -167,7 +200,8 @@ SOURCES += [
   '/intl/icu/source/i18n/udatpg.cpp',
   '/intl/icu/source/i18n/ufieldpositer.cpp',
   '/intl/icu/source/i18n/uitercollationiterator.cpp',
-   '/intl/icu/source/i18n/ulocdata.c',
+   '/intl/icu/source/i18n/ulistformatter.cpp',
+   '/intl/icu/source/i18n/ulocdata.cpp',
   '/intl/icu/source/i18n/umsg.cpp',
   '/intl/icu/source/i18n/unesctrn.cpp',
   '/intl/icu/source/i18n/uni2name.cpp',
@@ -184,10 +218,8 @@ SOURCES += [
   '/intl/icu/source/i18n/uspoof_impl.cpp',
   '/intl/icu/source/i18n/utf16collationiterator.cpp',
   '/intl/icu/source/i18n/utf8collationiterator.cpp',
-   '/intl/icu/source/i18n/utmscale.c',
+   '/intl/icu/source/i18n/utmscale.cpp',
   '/intl/icu/source/i18n/utrans.cpp',
-   '/intl/icu/source/i18n/valueformatter.cpp',
-   '/intl/icu/source/i18n/visibledigits.cpp',
   '/intl/icu/source/i18n/vtzone.cpp',
   '/intl/icu/source/i18n/vzone.cpp',
   '/intl/icu/source/i18n/windtfmt.cpp',
@@ -223,10 +255,14 @@ EXPORTS.unicode += [
   '/intl/icu/source/i18n/unicode/fpositer.h',
   '/intl/icu/source/i18n/unicode/gender.h',
   '/intl/icu/source/i18n/unicode/gregocal.h',
+   '/intl/icu/source/i18n/unicode/listformatter.h',
   '/intl/icu/source/i18n/unicode/measfmt.h',
   '/intl/icu/source/i18n/unicode/measunit.h',
   '/intl/icu/source/i18n/unicode/measure.h',
   '/intl/icu/source/i18n/unicode/msgfmt.h',
+   '/intl/icu/source/i18n/unicode/nounit.h',
+   '/intl/icu/source/i18n/unicode/numberformatter.h',
+   '/intl/icu/source/i18n/unicode/numberrangeformatter.h',
   '/intl/icu/source/i18n/unicode/numfmt.h',
   '/intl/icu/source/i18n/unicode/numsys.h',
   '/intl/icu/source/i18n/unicode/plurfmt.h',
@@ -263,10 +299,12 @@ EXPORTS.unicode += [
   '/intl/icu/source/i18n/unicode/ufieldpositer.h',
   '/intl/icu/source/i18n/unicode/uformattable.h',
   '/intl/icu/source/i18n/unicode/ugender.h',
+   '/intl/icu/source/i18n/unicode/ulistformatter.h',
   '/intl/icu/source/i18n/unicode/ulocdata.h',
   '/intl/icu/source/i18n/unicode/umsg.h',
   '/intl/icu/source/i18n/unicode/unirepl.h',
   '/intl/icu/source/i18n/unicode/unum.h',
+   '/intl/icu/source/i18n/unicode/unumberformatter.h',
   '/intl/icu/source/i18n/unicode/unumsys.h',
   '/intl/icu/source/i18n/unicode/upluralrules.h',
   '/intl/icu/source/i18n/unicode/uregex.h',
@@ -9,4 +9,4 @@

 Library('icustubdata')

-SOURCES += ['/intl/icu/source/stubdata/stubdata.c']
+SOURCES += ['/intl/icu/source/stubdata/stubdata.cpp']
@@ -1,110 +0,0 @@
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-# /!\ Please make sure to update the following comment when you touch this
-# file. Thank you /!\
-
-# The traditional Mozilla build system relied on going through the entire
-# build tree a number of times with different targets, and many of the
-# things happening at each step required other things happening in previous
-# steps without any documentation of those dependencies.
-#
-# This new build system tries to start afresh by establishing what files or
-# operations are needed for the build, and applying the necessary rules to
-# have those in place, relying on make dependencies to get them going.
-#
-# As of writing, only building non-compiled parts of Firefox is supported
-# here (a few other things are also left out). This is a starting point, with
-# the intent to grow this build system to make it more complete.
-#
-# This file contains rules and dependencies to get things working. The intent
-# is for a Makefile to define some dependencies and variables, and include
-# this file. What needs to be defined there, and ends up being generated by
-# python/mozbuild/mozbuild/backend/fastermake.py is the following:
-# - TOPSRCDIR/TOPOBJDIR, respectively the top source directory and the top
-#   object directory
-# - PYTHON, the path to the python executable
-# - ACDEFINES, which contains a set of -Dvar=name to be used during
-#   preprocessing
-# - INSTALL_MANIFESTS, which defines the list of base directories handled
-#   by install manifests, see further below
-#
-# A convention used between this file and the Makefile including it is that
-# global Make variables names are uppercase, while "local" Make variables
-# applied to specific targets are lowercase.
-
-# Targets to be triggered for a default build
-default: $(addprefix install-,$(INSTALL_MANIFESTS))
-
-ifndef NO_XPIDL
-# Targets from the recursive make backend to be built for a default build
-default: $(TOPOBJDIR)/config/makefiles/xpidl/xpidl
-endif
-
-# Mac builds require to copy things in dist/bin/*.app
-# TODO: remove the MOZ_WIDGET_TOOLKIT and MOZ_BUILD_APP variables from
-# faster/Makefile and python/mozbuild/mozbuild/test/backend/test_build.py
-# when this is not required anymore.
-# We however don't need to do this when using the hybrid
-# FasterMake/RecursiveMake backend (FASTER_RECURSIVE_MAKE is set when
-# recursing from the RecursiveMake backend)
-ifndef FASTER_RECURSIVE_MAKE
-ifeq (cocoa,$(MOZ_WIDGET_TOOLKIT))
-default:
-	$(MAKE) -C $(TOPOBJDIR)/$(MOZ_BUILD_APP)/app repackage
-endif
-endif
-
-.PHONY: FORCE
-
-# Extra define to trigger some workarounds. We should strive to limit the
-# use of those. As of writing the only ones are in
-# toolkit/content/buildconfig.html and browser/locales/jar.mn.
-ACDEFINES += -DBUILD_FASTER
-
-# Files under the faster/ sub-directory, however, are not meant to use the
-# fallback
-$(TOPOBJDIR)/faster/%: ;
-
-# Generic rule to fall back to the recursive make backend.
-# This needs to stay after other $(TOPOBJDIR)/* rules because GNU Make
-# <3.82 apply pattern rules in definition order, not stem length like
-# modern GNU Make.
-$(TOPOBJDIR)/%: FORCE
-	$(MAKE) -C $(dir $@) $(notdir $@)
-
-# Install files using install manifests
-#
-# The list of base directories is given in INSTALL_MANIFESTS. The
-# corresponding install manifests are named correspondingly, with forward
-# slashes replaced with underscores, and prefixed with `install_`. That is,
-# the install manifest for `dist/bin` would be `install_dist_bin`.
-$(addprefix install-,$(INSTALL_MANIFESTS)): install-%: $(addprefix $(TOPOBJDIR)/,buildid.h source-repo.h)
-	@# For now, force preprocessed files to be reprocessed every time.
-	@# The overhead is not that big, and this avoids waiting for proper
-	@# support for defines tracking in process_install_manifest.
-	@touch install_$(subst /,_,$*)
-	@# BOOKMARKS_INCLUDE_DIR is for bookmarks.html only.
-	$(PYTHON) -m mozbuild.action.process_install_manifest \
-		--track install_$(subst /,_,$*).track \
-		$(TOPOBJDIR)/$* \
-		-DAB_CD=en-US \
-		-DBOOKMARKS_INCLUDE_DIR=$(TOPSRCDIR)/browser/locales/en-US/profile \
-		$(ACDEFINES) \
-		install_$(subst /,_,$*)
-
-# ============================================================================
-# Below is a set of additional dependencies and variables used to build things
-# that are not supported by data in moz.build.
-
-# The xpidl target in config/makefiles/xpidl requires the install manifest for
-# dist/idl to have been processed. When using the hybrid
-# FasterMake/RecursiveMake backend, this dependency is handled in the top-level
-# Makefile.
-ifndef FASTER_RECURSIVE_MAKE
-$(TOPOBJDIR)/config/makefiles/xpidl/xpidl: $(TOPOBJDIR)/install-dist_idl
-endif
-# It also requires all the install manifests for dist/bin to have been processed
-# because it adds interfaces.manifest references with buildlist.py.
-$(TOPOBJDIR)/config/makefiles/xpidl/xpidl: $(addprefix install-,$(filter dist/bin%,$(INSTALL_MANIFESTS)))
@@ -8,4 +8,4 @@
 # Referenced by milestone.py.
 #--------------------------------------------------------

-5.1.0+
+5.2.1
@@ -19,12 +19,6 @@
 #  define MOZ_INCLUDE_MOZALLOC_H_FROM_${HEADER}
 #endif

-// Code built with !_HAS_EXCEPTIONS calls std::_Throw(), but the win2k
-// CRT doesn't export std::_Throw().  So we define it.
-#ifndef mozilla_Throw_h
-#  include "mozilla/throw_msvc.h"
-#endif
-
 #ifdef _DEBUG
 // From
 //   http://msdn.microsoft.com/en-us/library/aa985982%28VS.80%29.aspx
@@ -20,6 +20,11 @@
 * code by having a tag called "padding" and a property
 * value called "margin".
 */
+
+const { PrefObserver } = require("devtools/client/shared/prefs");
+const PREF_ENABLE_MDN_DOCS_TOOLTIP =
+  "devtools.inspector.mdnDocsTooltip.enabled";
+
 const TEST_URI = `
  <html>
    <head>
@@ -35,12 +40,50 @@ const TEST_URI = `
 `;

 add_task(function* () {
+  info("Ensure the pref is true to begin with");
+  let initial = Services.prefs.getBoolPref(PREF_ENABLE_MDN_DOCS_TOOLTIP);
+  if (initial != true) {
+    yield setBooleanPref(PREF_ENABLE_MDN_DOCS_TOOLTIP, true);
+  }
+
  yield addTab("data:text/html;charset=utf8," + encodeURIComponent(TEST_URI));
  let {inspector, view} = yield openRuleView();
  yield selectNode("padding", inspector);
  yield testMdnContextMenuItemVisibility(view);
+
+  info("Ensure the pref is reset to its initial value");
+  let eventual = Services.prefs.getBoolPref(PREF_ENABLE_MDN_DOCS_TOOLTIP);
+  if (eventual != initial) {
+    yield setBooleanPref(PREF_ENABLE_MDN_DOCS_TOOLTIP, initial);
+  }
 });

+/**
+ * Set a boolean pref, and wait for the pref observer to
+ * trigger, so that code listening for the pref change
+ * has had a chance to update itself.
+ *
+ * @param pref {string} Name of the pref to change
+ * @param state {boolean} Desired value of the pref.
+ *
+ * Note that if the pref already has the value in `state`,
+ * then the prefObserver will not trigger. So you should only
+ * call this function if you know the pref's current value is
+ * not `state`.
+ */
+function* setBooleanPref(pref, state) {
+  let oncePrefChanged = defer();
+  let prefObserver = new PrefObserver("devtools.");
+  prefObserver.on(pref, oncePrefChanged.resolve);
+
+  info("Set the pref " + pref + " to: " + state);
+  Services.prefs.setBoolPref(pref, state);
+
+  info("Wait for prefObserver to call back so the UI can update");
+  yield oncePrefChanged.promise;
+  prefObserver.off(pref, oncePrefChanged.resolve);
+}
+
 /**
 * Tests that the MDN context menu item is shown when it should be,
 * and hidden when it should be.
@@ -32,7 +32,7 @@ add_task(function* () {
  info("Ensure the pref is true to begin with");
  let initial = Services.prefs.getBoolPref(PREF_ENABLE_MDN_DOCS_TOOLTIP);
  if (initial != true) {
-    setBooleanPref(PREF_ENABLE_MDN_DOCS_TOOLTIP, true);
+    yield setBooleanPref(PREF_ENABLE_MDN_DOCS_TOOLTIP, true);
  }

  yield addTab("data:text/html;charset=utf8," + encodeURIComponent(TEST_DOC));
@@ -58,7 +58,7 @@ add_task(function* () {
  info("Ensure the pref is reset to its initial value");
  let eventual = Services.prefs.getBoolPref(PREF_ENABLE_MDN_DOCS_TOOLTIP);
  if (eventual != initial) {
-    setBooleanPref(PREF_ENABLE_MDN_DOCS_TOOLTIP, initial);
+    yield setBooleanPref(PREF_ENABLE_MDN_DOCS_TOOLTIP, initial);
  }
 });

@@ -59,7 +59,7 @@ pref("devtools.inspector.showUserAgentStyles", false);
 // Show all native anonymous content (like controls in <video> tags)
 pref("devtools.inspector.showAllAnonymousContent", false);
 // Enable the MDN docs tooltip
-pref("devtools.inspector.mdnDocsTooltip.enabled", true);
+pref("devtools.inspector.mdnDocsTooltip.enabled", false);

 // Enable the Font Inspector
 pref("devtools.fontinspector.enabled", true);
@@ -1032,7 +1032,7 @@ OutputPanel.prototype._resize = function () {
      break;
  }

-  this.document.body.style.width = "-moz-max-content";
+  this.document.body.style.width = "max-content";
  let style = this._frame.contentWindow.getComputedStyle(this.document.body);
  let frameWidth = parseInt(style.width, 10);
  let width = Math.min(maxWidth, frameWidth);
@@ -1462,7 +1462,9 @@ DebuggerServerConnection.prototype = {
  },

  send(packet) {
-    this.transport.send(packet);
+    if (this.transport) {
+      this.transport.send(packet);
+    }
  },

  /**
@@ -2209,13 +2209,13 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "content",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -2232,13 +2232,13 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "content",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -3304,9 +3304,7 @@ exports.CSS_PROPERTIES = {
      "-moz-mac-source-list-selection",
      "-moz-mac-vibrancy-dark",
      "-moz-mac-vibrancy-light",
-      "-moz-max-content",
      "-moz-middle-with-baseline",
-      "-moz-min-content",
      "-moz-none",
      "-moz-popup",
      "-moz-pre-space",
@@ -3362,6 +3360,7 @@ exports.CSS_PROPERTIES = {
      "bottom",
      "bottom-outside",
      "break-all",
+      "break-spaces",
      "break-word",
      "butt",
      "button",
@@ -3493,6 +3492,7 @@ exports.CSS_PROPERTIES = {
      "margin-box",
      "match-source",
      "mathematical",
+      "max-content",
      "medium",
      "menuarrow",
      "menubar",
@@ -3510,6 +3510,7 @@ exports.CSS_PROPERTIES = {
      "meterbar",
      "meterchunk",
      "middle",
+      "min-content",
      "miter",
      "mixed",
      "multiply",
@@ -6000,13 +6001,13 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "content",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -6023,13 +6024,13 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "content",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -6816,12 +6817,12 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -6903,12 +6904,12 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -7651,11 +7652,11 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "calc",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "none",
      "unset"
    ]
@@ -7673,11 +7674,11 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "calc",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "none",
      "unset"
    ]
@@ -7695,11 +7696,11 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "calc",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "none",
      "unset"
    ]
@@ -7735,12 +7736,12 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -7757,12 +7758,12 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -7779,12 +7780,12 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -9519,6 +9520,7 @@ exports.CSS_PROPERTIES = {
    "supports": [],
    "values": [
      "-moz-pre-space",
+      "break-spaces",
      "inherit",
      "initial",
      "normal",
@@ -9542,12 +9544,12 @@ exports.CSS_PROPERTIES = {
      "-moz-available",
      "-moz-calc",
      "-moz-fit-content",
-      "-moz-max-content",
-      "-moz-min-content",
      "auto",
      "calc",
      "inherit",
      "initial",
+      "max-content",
+      "min-content",
      "unset"
    ]
  },
@@ -36,11 +36,6 @@ EXPORTS.mozilla += [
 ]

 UNIFIED_SOURCES += [
-    'KeyframeEffect.cpp',
-    'KeyframeEffectReadOnly.cpp',
-]
-
-SOURCES += [
    'Animation.cpp',
    'AnimationEffectReadOnly.cpp',
    'AnimationEffectTiming.cpp',
@@ -54,7 +49,9 @@ SOURCES += [
    'DocumentTimeline.cpp',
    'EffectCompositor.cpp',
    'EffectSet.cpp',
+    'KeyframeEffect.cpp',
    'KeyframeEffectParams.cpp',
+    'KeyframeEffectReadOnly.cpp',
    'KeyframeUtils.cpp',
    'PendingAnimationTracker.cpp',
    'TimingParams.cpp',
@@ -15,7 +15,7 @@ EXPORTS += [
    'AudioChannelService.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'AudioChannelAgent.cpp',
    'AudioChannelService.cpp',
 ]
@@ -35,221 +35,81 @@ namespace dom {

 struct EventSourceInit;

+class EventSourceImpl;
+
 class EventSource final : public DOMEventTargetHelper
-                        , public nsIObserver
-                        , public nsIStreamListener
-                        , public nsIChannelEventSink
-                        , public nsIInterfaceRequestor
-                        , public nsSupportsWeakReference
 {
+  friend class EventSourceImpl;
 public:
-  explicit EventSource(nsPIDOMWindowInner* aOwnerWindow);
  NS_DECL_ISUPPORTS_INHERITED
-  NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_INHERITED(
-    EventSource, DOMEventTargetHelper)
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(EventSource, DOMEventTargetHelper)
+  virtual bool IsCertainlyAliveForCC() const override;

-  NS_DECL_NSIOBSERVER
-  NS_DECL_NSISTREAMLISTENER
-  NS_DECL_NSIREQUESTOBSERVER
-  NS_DECL_NSICHANNELEVENTSINK
-  NS_DECL_NSIINTERFACEREQUESTOR
+  // EventTarget
+  void DisconnectFromOwner() override
+  {
+    DOMEventTargetHelper::DisconnectFromOwner();
+    Close();
+  }

-  // nsWrapperCache
-  virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override;

  // WebIDL
-  nsPIDOMWindowInner*
-  GetParentObject() const
-  {
-    return GetOwner();
-  }
  static already_AddRefed<EventSource>
  Constructor(const GlobalObject& aGlobal, const nsAString& aURL,
-              const EventSourceInit& aEventSourceInitDict,
-              ErrorResult& aRv);
+              const EventSourceInit& aEventSourceInitDict, ErrorResult& aRv);

  void GetUrl(nsAString& aURL) const
  {
+    AssertIsOnTargetThread();
    aURL = mOriginalURL;
  }
+
  bool WithCredentials() const
  {
+    AssertIsOnTargetThread();
    return mWithCredentials;
  }

-  enum {
-    CONNECTING = 0U,
-    OPEN = 1U,
-    CLOSED = 2U
-  };
  uint16_t ReadyState() const
  {
+    AssertIsOnTargetThread();
    return mReadyState;
  }

  IMPL_EVENT_HANDLER(open)
  IMPL_EVENT_HANDLER(message)
  IMPL_EVENT_HANDLER(error)
+
  void Close();

-  virtual void DisconnectFromOwner() override;
-
-protected:
-  virtual ~EventSource();
-
-  MOZ_IS_CLASS_INIT
-  nsresult Init(nsISupports* aOwner,
-                const nsAString& aURL,
-                bool aWithCredentials);
-
-  nsresult GetBaseURI(nsIURI **aBaseURI);
-
-  void SetupHttpChannel();
-  nsresult SetupReferrerPolicy();
-  nsresult InitChannelAndRequestEventSource();
-  nsresult ResetConnection();
-  nsresult DispatchFailConnection();
-  nsresult SetReconnectionTimeout();
-
-  void AnnounceConnection();
-  void DispatchAllMessageEvents();
-  void ReestablishConnection();
-  void FailConnection();
-
-  nsresult Thaw();
-  nsresult Freeze();
-
-  static void TimerCallback(nsITimer *aTimer, void *aClosure);
-
-  nsresult PrintErrorOnConsole(const char       *aBundleURI,
-                               const char16_t  *aError,
-                               const char16_t **aFormatStrings,
-                               uint32_t          aFormatStringsLen);
-  nsresult ConsoleError();
-
-  static nsresult StreamReaderFunc(nsIInputStream *aInputStream,
-                                   void           *aClosure,
-                                   const char     *aFromRawSegment,
-                                   uint32_t        aToOffset,
-                                   uint32_t        aCount,
-                                   uint32_t       *aWriteCount);
-  nsresult SetFieldAndClear();
-  nsresult ClearFields();
-  nsresult ResetEvent();
-  nsresult DispatchCurrentMessageEvent();
-  nsresult ParseCharacter(char16_t aChr);
-  nsresult CheckHealthOfRequestCallback(nsIRequest *aRequestCallback);
-  nsresult OnRedirectVerifyCallback(nsresult result);
-
-  nsCOMPtr<nsIURI> mSrc;
-
-  nsString mLastEventID;
-  uint32_t mReconnectionTime;  // in ms
-
-  struct Message {
-    nsString mEventName;
-    nsString mLastEventID;
-    nsString mData;
-  };
-  nsDeque mMessagesToDispatch;
-  Message mCurrentMessage;
-
-  /**
-   * A simple state machine used to manage the event-source's line buffer
-   *
-   * PARSE_STATE_OFF              -> PARSE_STATE_BEGIN_OF_STREAM
-   *
-   * PARSE_STATE_BEGIN_OF_STREAM  -> PARSE_STATE_BOM_WAS_READ |
-   *                                 PARSE_STATE_CR_CHAR |
-   *                                 PARSE_STATE_BEGIN_OF_LINE |
-   *                                 PARSE_STATE_COMMENT |
-   *                                 PARSE_STATE_FIELD_NAME
-   *
-   * PARSE_STATE_BOM_WAS_READ     -> PARSE_STATE_CR_CHAR |
-   *                                 PARSE_STATE_BEGIN_OF_LINE |
-   *                                 PARSE_STATE_COMMENT |
-   *                                 PARSE_STATE_FIELD_NAME
-   *
-   * PARSE_STATE_CR_CHAR -> PARSE_STATE_CR_CHAR |
-   *                        PARSE_STATE_COMMENT |
-   *                        PARSE_STATE_FIELD_NAME |
-   *                        PARSE_STATE_BEGIN_OF_LINE
-   *
-   * PARSE_STATE_COMMENT -> PARSE_STATE_CR_CHAR |
-   *                        PARSE_STATE_BEGIN_OF_LINE
-   *
-   * PARSE_STATE_FIELD_NAME   -> PARSE_STATE_CR_CHAR |
-   *                             PARSE_STATE_BEGIN_OF_LINE |
-   *                             PARSE_STATE_FIRST_CHAR_OF_FIELD_VALUE
-   *
-   * PARSE_STATE_FIRST_CHAR_OF_FIELD_VALUE  -> PARSE_STATE_FIELD_VALUE |
-   *                                           PARSE_STATE_CR_CHAR |
-   *                                           PARSE_STATE_BEGIN_OF_LINE
-   *
-   * PARSE_STATE_FIELD_VALUE      -> PARSE_STATE_CR_CHAR |
-   *                                 PARSE_STATE_BEGIN_OF_LINE
-   *
-   * PARSE_STATE_BEGIN_OF_LINE   -> PARSE_STATE_CR_CHAR |
-   *                                PARSE_STATE_COMMENT |
-   *                                PARSE_STATE_FIELD_NAME |
-   *                                PARSE_STATE_BEGIN_OF_LINE
-   *
-   * Whenever the parser find an empty line or the end-of-file
-   * it dispatches the stacked event.
-   *
-   */
-  enum ParserStatus {
-    PARSE_STATE_OFF,
-    PARSE_STATE_BEGIN_OF_STREAM,
-    PARSE_STATE_BOM_WAS_READ,
-    PARSE_STATE_CR_CHAR,
-    PARSE_STATE_COMMENT,
-    PARSE_STATE_FIELD_NAME,
-    PARSE_STATE_FIRST_CHAR_OF_FIELD_VALUE,
-    PARSE_STATE_FIELD_VALUE,
-    PARSE_STATE_BEGIN_OF_LINE
-  };
-  ParserStatus mStatus;
-
-  bool mFrozen;
-  bool mErrorLoadOnRedirect;
-  bool mGoingToDispatchAllMessages;
-  bool mWithCredentials;
-  bool mWaitingForOnStopRequest;
-
-  // used while reading the input streams
-  nsCOMPtr<nsIUnicodeDecoder> mUnicodeDecoder;
-  nsresult mLastConvertionResult;
-  nsString mLastFieldName;
-  nsString mLastFieldValue;
-
-  nsCOMPtr<nsILoadGroup> mLoadGroup;
-
-  nsCOMPtr<nsIHttpChannel> mHttpChannel;
-
-  nsCOMPtr<nsITimer> mTimer;
-
-  uint16_t mReadyState;
-  nsString mOriginalURL;
-
-  nsCOMPtr<nsIPrincipal> mPrincipal;
-  nsString mOrigin;
-
-  // Event Source owner information:
-  // - the script file name
-  // - source code line number and column number where the Event Source object
-  //   was constructed.
-  // - the ID of the inner window where the script lives. Note that this may not
-  //   be the same as the Event Source owner window.
-  // These attributes are used for error reporting.
-  nsString mScriptFile;
-  uint32_t mScriptLine;
-  uint32_t mScriptColumn;
-  uint64_t mInnerWindowID;
-
 private:
-  EventSource(const EventSource& x);   // prevent bad usage
-  EventSource& operator=(const EventSource& x);
+  EventSource(nsPIDOMWindowInner* aOwnerWindow, bool aWithCredentials);
+  virtual ~EventSource();
+  // prevent bad usage
+  EventSource(const EventSource& x) = delete;
+  EventSource& operator=(const EventSource& x) = delete;
+
+  void AssertIsOnTargetThread() const
+  {
+    MOZ_ASSERT(NS_IsMainThread() == mIsMainThread);
+  }
+
+  nsresult CreateAndDispatchSimpleEvent(const nsAString& aName);
+
+  // Raw pointer because this EventSourceImpl is created, managed and destroyed
+  // by EventSource.
+  EventSourceImpl* mImpl;
+  nsString mOriginalURL;
+  uint16_t mReadyState;
+  bool mWithCredentials;
+  bool mIsMainThread;
+  // This is used to keep EventSourceImpl instance when there is a connection.
+  bool mKeepingAlive;
+
+  void UpdateMustKeepAlive();
+  void UpdateDontKeepAlive();
 };

 } // namespace dom
@@ -1390,9 +1390,8 @@ Navigator::GetPlatform(nsAString& aPlatform, bool aUsePrefOverriddenValue)
  aPlatform.AssignLiteral("Win32");
 #elif defined(XP_MACOSX) && defined(__ppc__)
  aPlatform.AssignLiteral("MacPPC");
-#elif defined(XP_MACOSX) && defined(__i386__)
-  aPlatform.AssignLiteral("MacIntel");
-#elif defined(XP_MACOSX) && defined(__x86_64__)
+#elif defined(XP_MACOSX)
+  // Always return "MacIntel", even on ARM64 macOS like Safari does.
  aPlatform.AssignLiteral("MacIntel");
 #else
  // XXX Communicator uses compiled-in build-time string defines
@@ -1402,32 +1402,6 @@ WebSocket::ConstructorCommon(const GlobalObject& aGlobal,

 NS_IMPL_CYCLE_COLLECTION_CLASS(WebSocket)

-NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(WebSocket)
-  bool isBlack = tmp->IsBlack();
-  if (isBlack || tmp->mKeepingAlive) {
-    if (tmp->mListenerManager) {
-      tmp->mListenerManager->MarkForCC();
-    }
-    if (!isBlack && tmp->PreservingWrapper()) {
-      // This marks the wrapper black.
-      tmp->GetWrapper();
-    }
-    return true;
-  }
-NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_END
-
-NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_BEGIN(WebSocket)
-  return tmp->IsBlack();
-NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_END
-
-NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(WebSocket)
-  return tmp->IsBlack();
-NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END
-
-NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(WebSocket,
-                                               DOMEventTargetHelper)
-NS_IMPL_CYCLE_COLLECTION_TRACE_END
-
 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(WebSocket,
                                                  DOMEventTargetHelper)
  if (tmp->mImpl) {
@@ -1444,6 +1418,12 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(WebSocket,
  }
 NS_IMPL_CYCLE_COLLECTION_UNLINK_END

+bool
+WebSocket::IsCertainlyAliveForCC() const
+{
+  return mKeepingAlive;
+}
+
 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(WebSocket)
 NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)

@@ -45,8 +45,8 @@ public:

 public:
  NS_DECL_ISUPPORTS_INHERITED
-  NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS_INHERITED(
-    WebSocket, DOMEventTargetHelper)
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(WebSocket, DOMEventTargetHelper)
+  virtual bool IsCertainlyAliveForCC() const override;

  // EventTarget
  virtual void EventListenerAdded(nsIAtom* aType) override;
@@ -222,7 +222,7 @@ EXPORTS.mozilla.dom += [
    'WindowOrientationObserver.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'AnonymousContent.cpp',
    'Attr.cpp',
    'BarProps.cpp',
@@ -238,7 +238,6 @@ SOURCES += [
    'DirectionalityUtils.cpp',
    'DocGroup.cpp',
    'DocumentFragment.cpp',
-    'DocumentOrShadowRoot.cpp',
    'DocumentType.cpp',
    'DOMCursor.cpp',
    'DOMError.cpp',
@@ -373,12 +372,14 @@ SOURCES += [
 ]

 if CONFIG['MOZ_WEBRTC']:
-    SOURCES += [
+    UNIFIED_SOURCES += [
        'nsDOMDataChannel.cpp',
    ]

 # these files couldn't be in UNIFIED_SOURCES for now for reasons given below:
 SOURCES += [
+    # DocumentOrShadowRoot conflicts with mozilla::dom::ShadowRoot
+    'DocumentOrShadowRoot.cpp',
    # Several conflicts with other bindings.
    'DOMIntersectionObserver.cpp',
    # Because of OS X headers.
@@ -2478,7 +2478,7 @@ nsDOMWindowUtils::AdvanceTimeAndRefresh(int64_t aMilliseconds)

  nsPresContext* presContext = GetPresContext();
  if (presContext) {
-    nsRefreshDriver* driver = presContext->RefreshDriver();
+    RefPtr<nsRefreshDriver> driver = presContext->RefreshDriver();
    driver->AdvanceTimeAndRefresh(aMilliseconds);

    RefPtr<LayerTransactionChild> transaction = GetLayerTransaction();
@@ -2504,6 +2504,21 @@ nsDocument::InitCSP(nsIChannel* aChannel)
    return NS_OK;
  }

+  // If this is explicitly loaded as a data document, no need to set a CSP.
+  if (mLoadedAsData) {
+    return NS_OK;
+  }
+  
+  // If this is an image, no need to set a CSP.
+  // If we don't do this, SVG images will be parsed as normal XML documents and
+  // subject to served CSPs, which might block internally applied inline styles.
+  // See UXP issue #1959.
+  nsCOMPtr<nsILoadInfo> loadInfo = aChannel->GetLoadInfo();
+  if (loadInfo->GetExternalContentPolicyType() ==
+      nsIContentPolicy::TYPE_IMAGE) {
+    return NS_OK;
+  }
+
  nsAutoCString tCspHeaderValue, tCspROHeaderValue;

  nsCOMPtr<nsIHttpChannel> httpChannel;
@@ -2532,7 +2547,6 @@ nsDocument::InitCSP(nsIChannel* aChannel)

  // Check if this is a signed content to apply default CSP.
  bool applySignedContentCSP = false;
-  nsCOMPtr<nsILoadInfo> loadInfo = aChannel->GetLoadInfo();
  if (loadInfo && loadInfo->GetVerifySignedContent()) {
    applySignedContentCSP = true;
  }
@@ -1185,7 +1185,8 @@ nsTreeSanitizer::SanitizeAttributes(mozilla::dom::Element* aElement,
        continue;
      }
      if (IsURL(aURLs, attrLocal)) {
-        if (SanitizeURL(aElement, attrNs, attrLocal)) {
+        bool fragmentOnly = aElement->IsSVGElement(nsGkAtoms::use);
+        if (SanitizeURL(aElement, attrNs, attrLocal, fragmentOnly)) {
          // in case the attribute removal shuffled the attribute order, start
          // the loop again.
          --ac;
@@ -1239,7 +1240,8 @@ nsTreeSanitizer::SanitizeAttributes(mozilla::dom::Element* aElement,
      // else not allowed
    } else if (aAllowXLink && kNameSpaceID_XLink == attrNs) {
      if (nsGkAtoms::href == attrLocal) {
-        if (SanitizeURL(aElement, attrNs, attrLocal)) {
+        bool fragmentOnly = aElement->IsSVGElement(nsGkAtoms::use);
+        if (SanitizeURL(aElement, attrNs, attrLocal, fragmentOnly)) {
          // in case the attribute removal shuffled the attribute order, start
          // the loop again.
          --ac;
@@ -1273,7 +1275,8 @@ nsTreeSanitizer::SanitizeAttributes(mozilla::dom::Element* aElement,
 bool
 nsTreeSanitizer::SanitizeURL(mozilla::dom::Element* aElement,
                             int32_t aNamespace,
-                             nsIAtom* aLocalName)
+                             nsIAtom* aLocalName,
+                             bool aFragmentOnly)
 {
  nsAutoString value;
  aElement->GetAttr(aNamespace, aLocalName, value);
@@ -1282,6 +1285,15 @@ nsTreeSanitizer::SanitizeURL(mozilla::dom::Element* aElement,
  static const char* kWhitespace = "\n\r\t\b";
  const nsAString& v =
    nsContentUtils::TrimCharsInSet(kWhitespace, value);
+  // Fragment-only url cannot be harmful.
+  if (!v.IsEmpty() && v.First() == u'#') {
+    return false;
+  }
+  // if we allow only same-document fragment URLs, stop and remove here
+  if (aFragmentOnly) {
+    aElement->UnsetAttr(aNamespace, aLocalName, false);
+    return true;
+  }

  nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
  uint32_t flags = nsIScriptSecurityManager::DISALLOW_INHERIT_PRINCIPAL;
@@ -143,11 +143,13 @@ class MOZ_STACK_CLASS nsTreeSanitizer {
     * @param aElement the element whose attribute to possibly modify
     * @param aNamespace the namespace of the URL attribute
     * @param aLocalName the local name of the URL attribute
+     * @param aFragmentOnly allows same-document references only
     * @return true if the attribute was removed and false otherwise
     */
    bool SanitizeURL(mozilla::dom::Element* aElement,
                       int32_t aNamespace,
-                       nsIAtom* aLocalName);
+                       nsIAtom* aLocalName,
+                       bool aFragmentOnly = false);

    /**
     * Checks a style rule for the presence of the 'binding' CSS property and
@@ -682,7 +682,7 @@ DefineUnforgeableAttributes(JSContext* cx, JS::Handle<JSObject*> obj,
 // funToString ObjectOps member for interface objects.
 JSString*
 InterfaceObjectToString(JSContext* aCx, JS::Handle<JSObject*> aObject,
-                        unsigned /* indent */)
+                        bool /* isToSource */)
 {
  const js::Class* clasp = js::GetObjectClass(aObject);
  MOZ_ASSERT(IsDOMIfaceAndProtoClass(clasp));
@@ -170,10 +170,6 @@ DOMInterfaces = {
    'headerFile': 'Crypto.h'
 },

-'CSS': {
-    'concrete': False,
-},
-
 'CSS2Properties': {
    'nativeType': 'nsDOMCSSDeclaration'
 },
@@ -50,21 +50,12 @@ struct GCPolicy<mozilla::OwningNonNull<T>>
 } // namespace JS

 namespace js {
-template<typename T>
-struct RootedBase<mozilla::OwningNonNull<T>>
+template<typename T, typename Wrapper>
+struct WrappedPtrOperations<mozilla::OwningNonNull<T>, Wrapper>
 {
-  typedef mozilla::OwningNonNull<T> SmartPtrType;
-
-  operator SmartPtrType& () const
-  {
-    auto& self = *static_cast<const JS::Rooted<SmartPtrType>*>(this);
-    return self.get();
-  }
-
  operator T& () const
  {
-    auto& self = *static_cast<const JS::Rooted<SmartPtrType>*>(this);
-    return self.get();
+    return static_cast<const Wrapper*>(this)->get();
  }
 };
 } // namespace js
@@ -38,19 +38,12 @@ struct GCPolicy<RefPtr<T>>
 } // namespace JS

 namespace js {
-template<typename T>
-struct RootedBase<RefPtr<T>>
+template<typename T, typename Wrapper>
+struct WrappedPtrOperations<RefPtr<T>, Wrapper>
 {
-  operator RefPtr<T>& () const
-  {
-    auto& self = *static_cast<const JS::Rooted<RefPtr<T>>*>(this);
-    return self.get();
-  }
-
  operator T*() const
  {
-    auto& self = *static_cast<const JS::Rooted<RefPtr<T>>*>(this);
-    return self.get();
+    return static_cast<const Wrapper*>(this)->get();
  }
 };
 } // namespace js
@@ -84,7 +84,7 @@ LOCAL_INCLUDES += [
    '/media/webrtc/signaling/src/peerconnection',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'BindingUtils.cpp',
    'CallbackInterface.cpp',
    'CallbackObject.cpp',
@@ -248,8 +248,14 @@ class IDLScope(IDLObject):
        return self.QName()

    def QName(self):
-        if self._name:
-            return self._name.QName() + "::"
+        # It's possible for us to be called before __init__ has been called, for
+        # the IDLObjectWithScope case.  In that case, self._name won't be set yet.
+        if hasattr(self, "_name"):
+            name = self._name
+        else:
+            name = None
+        if name:
+            return name.QName() + "::"
        return "::"

    def ensureUnique(self, identifier, object):
@@ -7,7 +7,7 @@ EXPORTS.mozilla.dom += [
    'BroadcastChannel.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'BroadcastChannel.cpp',
    'BroadcastChannelChild.cpp',
    'BroadcastChannelParent.cpp',
@@ -37,7 +37,7 @@ EXPORTS.mozilla.dom.cache += [
    'TypeUtils.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'Action.cpp',
    'ActorChild.cpp',
    'AutoUtils.cpp',
@@ -5752,6 +5752,18 @@ inline uint8_t PoisonValue(uint8_t v)
  return v + rand() %3 -1;
 }

+static IntRect ClipImageDataTransfer(IntRect& aSrc,
+                                     const IntPoint& aDestOffset,
+                                     const IntSize& aDestBounds)
+{
+  IntRect dest = aSrc;
+  dest.SafeMoveBy(aDestOffset);
+  dest = IntRect(IntPoint(0, 0), aDestBounds).SafeIntersect(dest);
+
+  aSrc = aSrc.SafeIntersect(dest - aDestOffset);
+  return aSrc + aDestOffset;
+}
+
 nsresult
 CanvasRenderingContext2D::GetImageDataArray(JSContext* aCx,
                                            int32_t aX,
@@ -5792,9 +5804,11 @@ CanvasRenderingContext2D::GetImageDataArray(JSContext* aCx,
    return NS_OK;
  }

-  IntRect srcRect(0, 0, mWidth, mHeight);
-  IntRect destRect(aX, aY, aWidth, aHeight);
-  IntRect srcReadRect = srcRect.Intersect(destRect);
+  IntRect dstWriteRect(0, 0, aWidth, aHeight);
+  IntRect srcReadRect = ClipImageDataTransfer(dstWriteRect,
+                                              IntPoint(aX, aY),
+                                              IntSize(mWidth, mHeight));
+
  RefPtr<DataSourceSurface> readback;
  DataSourceSurface::MappedSurface rawData;
  if (!srcReadRect.IsEmpty()) {
@@ -5822,9 +5836,6 @@ CanvasRenderingContext2D::GetImageDataArray(JSContext* aCx,
    }
  }

-  IntRect dstWriteRect = srcReadRect;
-  dstWriteRect.MoveBy(-aX, -aY);
-
  JS::AutoCheckCannotGC nogc;
  bool isShared;
  uint8_t* data = JS_GetUint8ClampedArrayData(darray, &isShared, nogc);
@@ -6025,10 +6036,10 @@ CanvasRenderingContext2D::PutImageData_explicit(int32_t aX, int32_t aY, uint32_t
    dirtyRect = imageDataRect;
  }

-  dirtyRect.MoveBy(IntPoint(aX, aY));
-  dirtyRect = IntRect(0, 0, mWidth, mHeight).Intersect(dirtyRect);
-
-  if (dirtyRect.Width() <= 0 || dirtyRect.Height() <= 0) {
+  IntRect srcRect = dirtyRect;
+  dirtyRect = ClipImageDataTransfer(srcRect, IntPoint(aX, aY),
+                                    IntSize(mWidth, mHeight));
+  if (dirtyRect.IsEmpty()) {
    return NS_OK;
  }

@@ -6,9 +6,6 @@

 #include "ImageBitmapColorUtils.h"

-#include "js/LegacyIntTypes.h"
-#include <cmath>
-
 namespace mozilla {
 namespace dom {

@@ -303,13 +303,13 @@ WebGLContext::FromDomElem(const char* funcName, TexImageTarget target, uint32_t
                          uint32_t height, uint32_t depth, const dom::Element& elem,
                          ErrorResult* const out_error)
 {
-    if (elem.IsHTMLElement(nsGkAtoms::canvas)) {
-        const dom::HTMLCanvasElement* canvas = static_cast<const dom::HTMLCanvasElement*>(&elem);
-        if (canvas->IsWriteOnly()) {
-            out_error->Throw(NS_ERROR_DOM_SECURITY_ERR);
-            return nullptr;
-        }
-    }
+    if (elem.IsHTMLElement(nsGkAtoms::canvas)) {
+        const dom::HTMLCanvasElement* canvas = static_cast<const dom::HTMLCanvasElement*>(&elem);
+        if (canvas->IsWriteOnly()) {
+            out_error->Throw(NS_ERROR_DOM_SECURITY_ERR);
+            return nullptr;
+        }
+    }

    uint32_t flags = nsLayoutUtils::SFE_WANT_IMAGE_SURFACE |
                     nsLayoutUtils::SFE_USE_ELEMENT_SIZE_IF_VECTOR;
@@ -1032,9 +1032,27 @@ ValidateCompressedTexImageRestrictions(const char* funcName, WebGLContext* webgl
 }

 static bool
-ValidateTargetForFormat(const char* funcName, WebGLContext* webgl, TexImageTarget target,
-                        const webgl::FormatInfo* format)
-{
+ValidateFormatAndSize(const char* funcName,
+                      WebGLContext* webgl,
+                      TexImageTarget target,
+                      const webgl::FormatInfo* format,
+                      const uint32_t width,
+                      const uint32_t height,
+                      const uint32_t depth) {
+    // Check if texture size will likely be rejected by the driver and give a more
+    // meaningful error message.
+    auto baseImageSize = CheckedInt<uint64_t>(format->estimatedBytesPerPixel) *
+                         width * height * depth;
+    if (target == LOCAL_GL_TEXTURE_CUBE_MAP) {
+        baseImageSize *= 6;
+    }
+     
+    if (!baseImageSize.isValid() ||
+        baseImageSize.value() > (uint64_t)gfxPrefs::WebGLMaxSizePerTextureMB * (1024 * 1024)) {
+        webgl->ErrorOutOfMemory("Texture size too large; base image MB > webgl.max-size-per-texture-mb");
+        return false;
+    }
+
    // GLES 3.0.4 p127:
    // "Textures with a base internal format of DEPTH_COMPONENT or DEPTH_STENCIL are
    //  supported by texture image specification commands only if `target` is TEXTURE_2D,
@@ -1137,7 +1155,8 @@ WebGLTexture::TexStorage(const char* funcName, TexTarget target, GLsizei levels,
    }
    auto dstFormat = dstUsage->format;

-    if (!ValidateTargetForFormat(funcName, mContext, testTarget, dstFormat))
+    if (!ValidateFormatAndSize(funcName, mContext, testTarget, dstFormat,
+                               width, height, depth))
        return;

    if (dstFormat->compression) {
@@ -1264,7 +1283,8 @@ WebGLTexture::TexImage(const char* funcName, TexImageTarget target, GLint level,
    // Check that source and dest info are compatible
    auto dstFormat = dstUsage->format;

-    if (!ValidateTargetForFormat(funcName, mContext, target, dstFormat))
+    if (!ValidateFormatAndSize(funcName, mContext, target, dstFormat,
+                               blob->mWidth, blob->mHeight, blob->mDepth))
        return;

    if (!mContext->IsWebGL2() && dstFormat->d) {
@@ -1484,7 +1504,8 @@ WebGLTexture::CompressedTexImage(const char* funcName, TexImageTarget target, GL
        return;
    }

-    if (!ValidateTargetForFormat(funcName, mContext, target, format))
+    if (!ValidateFormatAndSize(funcName, mContext, target, format,
+                               blob->mWidth, blob->mHeight, blob->mDepth))
        return;

    ////////////////////////////////////
@@ -2143,7 +2164,8 @@ WebGLTexture::CopyTexImage2D(TexImageTarget target, GLint level, GLenum internal
        return;

    const auto& dstFormat = dstUsage->format;
-    if (!ValidateTargetForFormat(funcName, mContext, target, dstFormat))
+    if (!ValidateFormatAndSize(funcName, mContext, target, dstFormat,
+                               width, height, depth))
        return;

    if (!mContext->IsWebGL2() && dstFormat->d) {
@@ -41,7 +41,7 @@ EXPORTS.mozilla.dom += [
 ]

 # Canvas 2D and common sources
-SOURCES += [
+UNIFIED_SOURCES += [
    'CanvasImageCache.cpp',
    'CanvasRenderingContext2D.cpp',
    'CanvasRenderingContextHelper.cpp',
@@ -59,7 +59,7 @@ SOURCES += [
 ]

 # WebGL Sources
-SOURCES += [
+UNIFIED_SOURCES += [
    'TexUnpackBlob.cpp',
    'WebGL1Context.cpp',
    'WebGL1ContextUniforms.cpp',
@@ -21,7 +21,7 @@ EXPORTS.mozilla.dom += [
    'Console.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'Console.cpp',
    'ConsoleReportCollector.cpp',
 ]
@@ -12,7 +12,7 @@ EXPORTS.mozilla.dom += [
    'WebCryptoThreadPool.h'
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'CryptoBuffer.cpp',
    'CryptoKey.cpp',
    'KeyAlgorithmProxy.cpp',
@@ -10,7 +10,7 @@ EXPORTS.mozilla.dom += [
    'TextEncoder.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'EncodingUtils.cpp',
    'FallbackEncoding.cpp',
    'TextDecoder.cpp',
@@ -52,11 +52,12 @@ NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(DOMEventTargetHelper)
 NS_IMPL_CYCLE_COLLECTION_UNLINK_END

 NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(DOMEventTargetHelper)
-  if (tmp->IsBlack() || tmp->IsCertainlyAliveForCC()) {
+  bool isBlack = tmp->IsBlack();
+  if (isBlack || tmp->IsCertainlyAliveForCC()) {
    if (tmp->mListenerManager) {
      tmp->mListenerManager->MarkForCC();
    }
-    if (!tmp->IsBlack() && tmp->PreservingWrapper()) {
+    if (!isBlack && tmp->PreservingWrapper()) {
      // This marks the wrapper black.
      tmp->GetWrapper();
    }
@@ -639,16 +639,11 @@ DataTransfer::PrincipalMaySetData(const nsAString& aType,
      return false;
    }

-    if (aType.EqualsASCII(kFileMime) ||
-        aType.EqualsASCII(kFilePromiseMime)) {
-      NS_WARNING("Disallowing adding x-moz-file or x-moz-file-promize types to DataTransfer");
-      return false;
-    }
-    
-    // Disallow content from creating x-moz-place flavors, so that it cannot
-    // create fake Places smart queries exposing user data.
-    if (StringBeginsWith(aType, NS_LITERAL_STRING("text/x-moz-place"))) {
-      NS_WARNING("Disallowing adding moz-place types to DataTransfer");
+    // Don't allow adding internal types of the form */x-moz-*, but
+    // special-case the url types as they are simple variations of urls.
+    if (FindInReadable(NS_LITERAL_STRING(kInternal_Mimetype_Prefix), aType) &&
+        !StringBeginsWith(aType, NS_LITERAL_STRING("text/x-moz-url"))) {
+      NS_WARNING("Disallowing adding requested internal type to DataTransfer");
      return false;
    }
  }
@@ -751,6 +751,8 @@ EventListenerManager::SetEventHandler(nsIAtom* aName,
                                      bool aPermitUntrustedEvents,
                                      Element* aElement)
 {
+  auto removeEventHandler = MakeScopeExit([&] { RemoveEventHandler(aName, EmptyString()); });
+
  nsCOMPtr<nsIDocument> doc;
  nsCOMPtr<nsIScriptGlobalObject> global =
    GetScriptGlobalAndDocument(getter_AddRefs(doc));
@@ -825,6 +827,8 @@ EventListenerManager::SetEventHandler(nsIAtom* aName,
  NS_ENSURE_TRUE(context, NS_ERROR_FAILURE);
  NS_ENSURE_STATE(global->GetGlobalJSObject());

+  removeEventHandler.release();
+
  Listener* listener = SetEventHandlerInternal(aName,
                                               EmptyString(),
                                               TypedEventHandler(),
@@ -73,7 +73,7 @@ EXPORTS.mozilla.dom += [
    'XULCommandEvent.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'AnimationEvent.cpp',
    'AsyncEventDispatcher.cpp',
    'BeforeAfterKeyboardEvent.cpp',
@@ -95,7 +95,6 @@ SOURCES += [
    'EventDispatcher.cpp',
    'EventListenerManager.cpp',
    'EventListenerService.cpp',
-    'EventStateManager.cpp',
    'EventTarget.cpp',
    'FocusEvent.cpp',
    'ImageCaptureError.cpp',
@@ -125,6 +124,11 @@ SOURCES += [
    'XULCommandEvent.cpp',
 ]

+# nsEventStateManager.cpp should be built separately because of Mac OS X headers.
+SOURCES += [
+    'EventStateManager.cpp',
+]
+
 include('/ipc/chromium/chromium-config.mozbuild')

 FINAL_LIBRARY = 'xul'
@@ -13,7 +13,6 @@
 #include "nsIUnicodeDecoder.h"
 #include "nsIUnicodeEncoder.h"

-#include "nsCharSeparatedTokenizer.h"
 #include "nsDOMString.h"
 #include "nsNetUtil.h"
 #include "nsReadableUtils.h"
@@ -19,14 +19,9 @@ EXPORTS.mozilla.dom += [
 ]

 UNIFIED_SOURCES += [
+    'ChannelInfo.cpp',
    'Fetch.cpp',
    'FetchConsumer.cpp',
-    'Request.cpp',
-    'Response.cpp',
-]
-
-SOURCES += [
-    'ChannelInfo.cpp',
    'FetchDriver.cpp',
    'FetchObserver.cpp',
    'FetchUtil.cpp',
@@ -34,6 +29,8 @@ SOURCES += [
    'InternalHeaders.cpp',
    'InternalRequest.cpp',
    'InternalResponse.cpp',
+    'Request.cpp',
+    'Response.cpp',
 ]

 IPDL_SOURCES += [
@@ -17,7 +17,7 @@ EXPORTS.mozilla.dom += [
    'MutableFileBase.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'ActorsChild.cpp',
    'ActorsParent.cpp',
    'FileHandleBase.cpp',
@@ -9,7 +9,6 @@
 #include "GetFilesTask.h"
 #include "WorkerPrivate.h"

-#include "nsCharSeparatedTokenizer.h"
 #include "nsString.h"
 #include "mozilla/dom/DirectoryBinding.h"
 #include "mozilla/dom/FileSystemBase.h"
@@ -5,7 +5,6 @@

 #include "mozilla/dom/FileSystemBase.h"

-#include "nsCharSeparatedTokenizer.h"
 #include "FileSystemUtils.h"
 #include "OSFileSystem.h"

@@ -18,7 +18,7 @@ EXPORTS.mozilla.dom += [
    'OSFileSystem.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'Directory.cpp',
    'FileSystemBase.cpp',
    'FileSystemRequestParent.cpp',
@@ -30,7 +30,7 @@ if CONFIG['MOZ_GAMEPAD']:
        'ipc/GamepadTestChannelParent.h'
        ]

-    SOURCES = [
+    UNIFIED_SOURCES = [
        'Gamepad.cpp',
        'GamepadButton.cpp',
        'GamepadManager.cpp',
@@ -45,19 +45,19 @@ if CONFIG['MOZ_GAMEPAD']:
        ]

    if CONFIG['MOZ_GAMEPAD_BACKEND'] == 'stub':
-        SOURCES += [
+        UNIFIED_SOURCES += [
            'fallback/FallbackGamepad.cpp'
        ]
    elif CONFIG['MOZ_GAMEPAD_BACKEND'] == 'cocoa':
-        SOURCES += [
+        UNIFIED_SOURCES += [
            'cocoa/CocoaGamepad.cpp'
        ]
    elif CONFIG['MOZ_GAMEPAD_BACKEND'] == 'windows':
-        SOURCES += [
+        UNIFIED_SOURCES += [
            'windows/WindowsGamepad.cpp'
        ]
    elif CONFIG['MOZ_GAMEPAD_BACKEND'] == 'linux':
-        SOURCES += [
+        UNIFIED_SOURCES += [
            'linux/LinuxGamepad.cpp'
        ]

@@ -12,7 +12,7 @@ SOURCES += [
    'nsGeolocation.cpp',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'MLSFallback.cpp',
    'nsGeoPosition.cpp',
 ]
@@ -15,7 +15,7 @@ EXPORTS.mozilla.dom += [
    'GridTracks.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'Grid.cpp',
    'GridArea.cpp',
    'GridDimension.cpp',
@@ -1721,7 +1721,8 @@ HTMLFormElement::GetActionURL(nsIURI** aActionURL,
    // policy - do *not* consult default-src, see:
    // http://www.w3.org/TR/CSP2/#directive-default-src
    rv = csp->Permits(actionURL, nsIContentSecurityPolicy::FORM_ACTION_DIRECTIVE,
-                      true, &permitsFormAction);
+                      true /*aSpecific */, true /* aSendViolationReports */,
+                      &permitsFormAction);
    NS_ENSURE_SUCCESS(rv, rv);
    if (!permitsFormAction) {
      return NS_ERROR_CSP_FORM_ACTION_VIOLATION;
@@ -13,6 +13,10 @@
 #include "nsIFrame.h"
 #include "nsIFormControlFrame.h"

+#if defined(MOZ_X11)
+#include "X11UndefineNone.h"
+#endif
+
 NS_IMPL_NS_NEW_HTML_ELEMENT(OptGroup)

 namespace mozilla {
@@ -191,7 +191,8 @@ SetBaseURIUsingFirstBaseWithHref(nsIDocument* aDocument, nsIContent* aMustMatch)
        // http://www.w3.org/TR/CSP2/#directive-default-src
        bool cspPermitsBaseURI = true;
        rv = csp->Permits(newBaseURI, nsIContentSecurityPolicy::BASE_URI_DIRECTIVE,
-                          true, &cspPermitsBaseURI);
+                          true /* aSpecific */, true /* aSendViolationReports */,
+                          &cspPermitsBaseURI);
        if (NS_FAILED(rv) || !cspPermitsBaseURI) {
          newBaseURI = nullptr;
        }
@@ -120,7 +120,7 @@ EXPORTS.mozilla.dom += [
    'ValidityState.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'HTMLAllCollection.cpp',
    'HTMLAnchorElement.cpp',
    'HTMLAreaElement.cpp',
@@ -203,7 +203,6 @@ SOURCES += [
    'nsIConstraintValidation.cpp',
    'nsRadioVisitor.cpp',
    'nsTextEditorState.cpp',
-    'PluginDocument.cpp',
    'RadioNodeList.cpp',
    'TextTrackManager.cpp',
    'TimeRanges.cpp',
@@ -211,6 +210,11 @@ SOURCES += [
    'VideoDocument.cpp',
 ]

+SOURCES += [
+    # Includes npapi.h.
+    'PluginDocument.cpp',
+]
+
 EXTRA_COMPONENTS += [
    'htmlMenuBuilder.js',
    'htmlMenuBuilder.manifest'
@@ -44,7 +44,7 @@ EXPORTS.mozilla.dom.indexedDB += [
    'SerializationHelpers.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'ActorsChild.cpp',
    'FileInfo.cpp',
    'FileSnapshot.cpp',
@@ -252,9 +252,6 @@ interface nsIContentSecurityPolicy : nsISerializable
  /**
   * Checks if a specific directive permits loading of a URI.
   *
-   * NOTE: Calls to this may trigger violation reports when queried, so the
-   * return value should not be cached.
-   *
   * @param aURI
   *    The URI about to be loaded or used.
   * @param aDir
@@ -266,11 +263,17 @@ interface nsIContentSecurityPolicy : nsISerializable
   *    "false" allows CSP to fall back to default-src.  This function
   *    behaves the same for both values of canUseDefault when querying
   *    directives that don't fall-back.
+   * @param aSendViolationReports
+   *    If `true` and the uri is not allowed then trigger violation reports.
+   *    This should be `false` for caching or preloads.
   * @return
   *    Whether or not the provided URI is allowed by CSP under the given
   *    directive. (block the pending operation if false).
   */
-  boolean permits(in nsIURI aURI, in CSPDirective aDir, in boolean aSpecific);
+  boolean permits(in nsIURI aURI,
+                  in CSPDirective aDir,
+                  in boolean aSpecific,
+                  in boolean aSendViolationReports);

  /**
   * Delegate method called by the service when sub-elements of the protected
@@ -160,7 +160,7 @@
 #include "mozilla/dom/time/DateCacheCleaner.h"
 #include "mozilla/net/NeckoMessageUtils.h"
 #include "mozilla/widget/PuppetBidiKeyboard.h"
-#include "mozilla/RemoteSpellCheckEngineChild.h"
+#include "mozilla/mozSpellChecker.h"
 #include "GMPServiceChild.h"
 #include "gfxPlatform.h"
 #include "nscore.h" // for NS_FREE_PERMANENT_DATA
@@ -43,13 +43,11 @@ EXPORTS.mozilla += [
    'ProcessPriorityManager.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'AppProcessChecker.cpp',
-    'Blob.cpp',
    'ColorPickerParent.cpp',
    'ContentBridgeChild.cpp',
    'ContentBridgeParent.cpp',
-    'ContentChild.cpp',
    'ContentParent.cpp',
    'ContentProcess.cpp',
    'ContentProcessManager.cpp',
@@ -58,7 +56,6 @@ SOURCES += [
    'nsIContentParent.cpp',
    'PermissionMessageUtils.cpp',
    'PreallocatedProcessManager.cpp',
-    'ProcessHangMonitor.cpp',
    'ProcessPriorityManager.cpp',
    'ScreenManagerParent.cpp',
    'StructuredCloneData.cpp',
@@ -68,6 +65,14 @@ SOURCES += [
    'TabParent.cpp',
 ]

+# Blob.cpp cannot be compiled in unified mode because it triggers a fatal gcc warning.
+# ContentChild.cpp cannot be compiled in unified mode on  linux due to Time conflict
+SOURCES += [
+    'Blob.cpp',
+    'ContentChild.cpp',
+    'ProcessHangMonitor.cpp',
+]
+
 IPDL_SOURCES += [
    'BlobTypes.ipdlh',
    'DOMTypes.ipdlh',
@@ -5,7 +5,9 @@

 EXPORTS += ['nsJSON.h']

-SOURCES += ['nsJSON.cpp']
+UNIFIED_SOURCES += [
+    'nsJSON.cpp',
+]

 LOCAL_INCLUDES += ['/dom/base']

@@ -7,7 +7,7 @@ EXPORTS += [
    'nsJSProtocolHandler.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'nsJSProtocolHandler.cpp',
 ]

@@ -3,7 +3,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.

-SOURCES += [
+UNIFIED_SOURCES += [
    'nsMathMLElement.cpp',
    'nsMathMLElementFactory.cpp',
 ]
@@ -278,18 +278,21 @@ DecoderTraits::CanHandleContentType(const MediaContentType& aContentType,
 bool DecoderTraits::ShouldHandleMediaType(const char* aMIMEType,
                                          DecoderDoctorDiagnostics* aDiagnostics)
 {
-  if (IsWaveSupportedType(nsDependentCString(aMIMEType))) {
-    // We should not return true for Wave types, since there are some
-    // Wave codecs actually in use in the wild that we don't support, and
-    // we should allow those to be handled by plugins or helper apps.
-    // Furthermore people can play Wave files on most platforms by other
-    // means.
+  // Prior to Issue #1977, we always pop-up the download prompt when
+  // wave files are opened directly. This was considered inconsistent
+  // since we play wave files when they're inside an HTML5 audio tag
+  // anyway. However, there may be users who depended on this old
+  // behavior, where they use their helper apps to open WAV audio
+  // instead. We should allow this old behavior behind a pref for
+  // those who want it.
+  if (!Preferences::GetBool("media.wave.play-stand-alone", true) &&
+      IsWaveSupportedType(nsDependentCString(aMIMEType))) {
    return false;
  }

  // If an external plugin which can handle quicktime video is available
-  // (and not disabled), prefer it over native playback as there several
-  // codecs found in the wild that we do not handle.
+  // (and not disabled), prefer it over native playback as there are
+  // several codecs found in the wild that we do not handle.
  if (nsDependentCString(aMIMEType).EqualsASCII("video/quicktime")) {
    RefPtr<nsPluginHost> pluginHost = nsPluginHost::GetInst();
    if (pluginHost &&
@@ -414,6 +417,7 @@ bool DecoderTraits::IsSupportedInVideoDocument(const nsACString& aType)
 #endif
    IsMP3SupportedType(aType) ||
    IsAACSupportedType(aType) ||
+    IsWaveSupportedType(aType) ||
    IsFlacSupportedType(aType) ||
    false;
 }
@@ -31,7 +31,6 @@
 #include "nsTArray.h"
 #include "GeckoProfiler.h"
 #include "nsContentTypeParser.h"
-#include "nsCharSeparatedTokenizer.h"

 #ifdef LOG
 #undef LOG
@@ -588,7 +588,7 @@ RTCPeerConnection.prototype = {
          throw new this._win.DOMException(msg + " - improper scheme: " + url.scheme,
                                           "SyntaxError");
        }
-        if (url.scheme in { stuns:1, turns:1 }) {
+        if (url.scheme in { stuns:1 }) {
          this.logWarning(url.scheme.toUpperCase() + " is not yet supported.");
        }
      });
@@ -22,7 +22,7 @@ EXPORTS.mozilla += [
    'EMEUtils.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'CDMCaps.cpp',
    'DetailedPromise.cpp',
    'EMEUtils.cpp',
@@ -15,7 +15,7 @@ EXPORTS += [
    'TrackMetadataBase.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'MediaEncoder.cpp',
    'OpusTrackEncoder.cpp',
    'TrackEncoder.cpp',
@@ -25,7 +25,7 @@ if CONFIG['MOZ_WEBM_ENCODER']:
    EXPORTS += ['VP8TrackEncoder.h',
    ]

-    SOURCES += ['VP8TrackEncoder.cpp',
+    UNIFIED_SOURCES += ['VP8TrackEncoder.cpp',
    ]

    LOCAL_INCLUDES += ['/media/libyuv/include']
@@ -9,7 +9,7 @@ EXPORTS += [
    'FlacFrameParser.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'FlacDecoder.cpp',
    'FlacDemuxer.cpp',
    'FlacFrameParser.cpp',
@@ -9,10 +9,13 @@ EXPORTS += [
    'MP4Stream.h',
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'MP4Decoder.cpp',
-    'MP4Demuxer.cpp',
    'MP4Stream.cpp',
 ]

+SOURCES += [
+    'MP4Demuxer.cpp',
+]
+
 FINAL_LIBRARY = 'xul'
@@ -1018,11 +1018,12 @@ GeckoMediaPluginServiceParent::PluginTerminated(const RefPtr<GMPParent>& aPlugin
  MOZ_ASSERT(NS_GetCurrentThread() == mGMPThread);

  if (aPlugin->IsMarkedForDeletion()) {
-    nsString path;
+    nsCString path8;
    RefPtr<nsIFile> dir = aPlugin->GetDirectory();
-    nsresult rv = dir->GetPath(path);
+    nsresult rv = dir->GetNativePath(path8);
    NS_ENSURE_SUCCESS_VOID(rv);

+    nsString path = NS_ConvertUTF8toUTF16(path8);
    if (mPluginsWaitingForDeletion.Contains(path)) {
      RemoveOnGMPThread(path, true /* delete */, true /* can defer */);
    }
@@ -76,7 +76,7 @@ if CONFIG['MOZ_EME']:
        'GMPCDMProxy.h',
    ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'GMPAudioDecoderChild.cpp',
    'GMPAudioDecoderParent.cpp',
    'GMPAudioHost.cpp',
@@ -112,7 +112,7 @@ SOURCES += [
 ]

 if CONFIG['MOZ_EME']:
-    SOURCES += [
+    UNIFIED_SOURCES += [
        'GMPCDMCallbackProxy.cpp',
        'GMPCDMProxy.cpp',
    ]
@@ -7,7 +7,7 @@ EXPORTS.mozilla.dom += [
    'ImageCapture.h'
 ]

-SOURCES += [
+UNIFIED_SOURCES += [
    'CaptureTask.cpp',
    'ImageCapture.cpp',
 ]
@@ -3,7 +3,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.

-SOURCES += [
+UNIFIED_SOURCES += [
    'AudioSinkWrapper.cpp',
    'DecodedAudioDataSink.cpp',
    'DecodedStream.cpp',