Update to Chromium version 86.0.4240.0 (#800218)

- CefURLRequest::Create is no longer supported in the renderer process
  (see https://crbug.com/891872). Use CefFrame::CreateURLRequest instead.
- Mac platform definitions have been changed from `MACOSX` to `MAC`
  (see https://crbug.com/1105907) and related CMake macro names have
  been updated. The old `OS_MACOSX` define is still set in code and CMake
  for backwards compatibility.
- Linux ARM build is currently broken (see https://crbug.com/1123214).

patch/patches/chrome_runtime.patch

@@ -1,8 +1,8 @@
 diff --git chrome/app/chrome_main_delegate.cc chrome/app/chrome_main_delegate.cc
-index 945cee14368b..38c180a6e7e6 100644
+index 313975f42c0d..ee7f27dab6b7 100644
 --- chrome/app/chrome_main_delegate.cc
 +++ chrome/app/chrome_main_delegate.cc
-@@ -25,6 +25,7 @@
+@@ -27,6 +27,7 @@
  #include "base/time/time.h"
  #include "base/trace_event/trace_event_impl.h"
  #include "build/build_config.h"
@@ -10,7 +10,7 @@ index 945cee14368b..38c180a6e7e6 100644
  #include "chrome/browser/chrome_content_browser_client.h"
  #include "chrome/browser/chrome_resource_bundle_helper.h"
  #include "chrome/browser/defaults.h"
-@@ -392,6 +393,8 @@ struct MainFunction {
+@@ -379,6 +380,8 @@ struct MainFunction {
  
  // Initializes the user data dir. Must be called before InitializeLocalState().
  void InitializeUserDataDir(base::CommandLine* command_line) {
@@ -19,16 +19,16 @@ index 945cee14368b..38c180a6e7e6 100644
  #if defined(OS_WIN)
    // Reach out to chrome_elf for the truth on the user data directory.
    // Note that in tests, this links to chrome_elf_test_stubs.
-@@ -629,7 +632,9 @@ void ChromeMainDelegate::PostFieldTrialInitialization() {
+@@ -624,7 +627,9 @@ void ChromeMainDelegate::PostFieldTrialInitialization() {
    }
  
  #if defined(OS_WIN)
 +  if (!cef::IsChromeRuntimeEnabled()) {
    SetUpExtendedCrashReporting(is_browser_process);
 +  }
-   base::Time::ReadMinTimerIntervalLowResMs();
    base::sequence_manager::internal::ThreadControllerPowerMonitor::
        InitializeOnMainThread();
+ #endif
 @@ -906,6 +911,7 @@ void ChromeMainDelegate::PreSandboxStartup() {
    std::string process_type =
        command_line.GetSwitchValueASCII(switches::kProcessType);
@@ -45,15 +45,15 @@ index 945cee14368b..38c180a6e7e6 100644
  
  #if defined(OS_WIN)
    child_process_logging::Init();
-@@ -1039,6 +1046,7 @@ void ChromeMainDelegate::PreSandboxStartup() {
+@@ -1040,6 +1047,7 @@ void ChromeMainDelegate::PreSandboxStartup() {
          locale;
    }
  
 +  if (!cef::IsChromeRuntimeEnabled()) {
- #if defined(OS_POSIX) && !defined(OS_MACOSX)
+ #if defined(OS_POSIX) && !defined(OS_MAC)
    // Zygote needs to call InitCrashReporter() in RunZygote().
    if (process_type != service_manager::switches::kZygoteProcess) {
-@@ -1071,6 +1079,7 @@ void ChromeMainDelegate::PreSandboxStartup() {
+@@ -1072,6 +1080,7 @@ void ChromeMainDelegate::PreSandboxStartup() {
    // After all the platform Breakpads have been initialized, store the command
    // line for crash reporting.
    crash_keys::SetCrashKeysFromCommandLine(command_line);
@@ -61,7 +61,7 @@ index 945cee14368b..38c180a6e7e6 100644
  
  #if BUILDFLAG(ENABLE_PDF)
    MaybeInitializeGDI();
-@@ -1169,6 +1178,7 @@ void ChromeMainDelegate::ZygoteForked() {
+@@ -1170,6 +1179,7 @@ void ChromeMainDelegate::ZygoteForked() {
      SetUpProfilingShutdownHandler();
    }
  
@@ -69,27 +69,27 @@ index 945cee14368b..38c180a6e7e6 100644
    // Needs to be called after we have chrome::DIR_USER_DATA.  BrowserMain sets
    // this up for the browser process in a different manner.
    const base::CommandLine* command_line =
-@@ -1185,6 +1195,7 @@ void ChromeMainDelegate::ZygoteForked() {
+@@ -1186,6 +1196,7 @@ void ChromeMainDelegate::ZygoteForked() {
  
    // Reset the command line for the newly spawned process.
    crash_keys::SetCrashKeysFromCommandLine(*command_line);
 +  }  // !cef::IsChromeRuntimeEnabled()
  }
  
- #endif  // defined(OS_LINUX)
+ #endif  // defined(OS_LINUX) || defined(OS_CHROMEOS)
 diff --git chrome/browser/chrome_browser_main.cc chrome/browser/chrome_browser_main.cc
-index 5117fe3b5ee3..e8f37fa7066f 100644
+index 68a92d3924f0..280ef9019551 100644
 --- chrome/browser/chrome_browser_main.cc
 +++ chrome/browser/chrome_browser_main.cc
-@@ -48,6 +48,7 @@
- #include "build/branding_buildflags.h"
+@@ -49,6 +49,7 @@
  #include "build/build_config.h"
+ #include "build/lacros_buildflags.h"
  #include "cc/base/switches.h"
 +#include "cef/libcef/features/runtime.h"
  #include "chrome/browser/about_flags.h"
  #include "chrome/browser/active_use_util.h"
  #include "chrome/browser/after_startup_task_utils.h"
-@@ -889,8 +890,10 @@ int ChromeBrowserMainParts::PreCreateThreadsImpl() {
+@@ -892,8 +893,10 @@ int ChromeBrowserMainParts::PreCreateThreadsImpl() {
  #if !defined(OS_ANDROID)
    // Create the RunLoop for MainMessageLoopRun() to use, and pass a copy of
    // its QuitClosure to the BrowserProcessImpl to call when it is time to exit.
@@ -101,7 +101,7 @@ index 5117fe3b5ee3..e8f37fa7066f 100644
  
    // These members must be initialized before returning from this function.
    // Android doesn't use StartupBrowserCreator.
-@@ -1592,11 +1595,13 @@ int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
+@@ -1608,11 +1611,13 @@ int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
    // This step is costly and is already measured in
    // Startup.StartupBrowserCreator_Start.
    // See the comment above for an explanation of |process_command_line|.
@@ -142,7 +142,7 @@ index ad52e63ed83a..6b16ee3ccc96 100644
      base::mac::ScopedMachSendRight exceptionPort(
          crash_reporter::GetCrashpadClient().GetHandlerMachPort());
 diff --git ui/gtk/select_file_dialog_impl_kde.cc ui/gtk/select_file_dialog_impl_kde.cc
-index 4eba97d573d8..4697b24f4e34 100644
+index 464aa72e1d47..30a621dea6fc 100644
 --- ui/gtk/select_file_dialog_impl_kde.cc
 +++ ui/gtk/select_file_dialog_impl_kde.cc
 @@ -6,6 +6,8 @@