[TimeZoneMonitor] Decouple renderer side impl from content to blink.

third_party/WebKit/Source/web/WebKit.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 64 matching lines @@
   return *initializer;
 }
 
 void initialize(Platform* platform) {
   Platform::initialize(platform);
 
   V8Initializer::initializeMainThread();
 
   modulesInitializer().initialize();
 
+  // Some unit tests may have no message loop ready, so we can't initialize the
+  // mojo stuff here. They can initialize those mojo stuff they're interested in
+  // later after they got a message loop ready.
+  if (Platform::isMessageLoopReady())
+    modulesInitializer().initializeMojo();

[haraken, 2016/10/26 11:21:59]

Can we move this into modulesInitializer().initialize()?

[leonhsl(Using Gerrit), 2016/10/26 11:45:48]

Acknowledged.

[leonhsl(Using Gerrit), 2016/10/27 05:01:27]

Done.

+
   // currentThread is null if we are running on a thread without a message loop.
   if (WebThread* currentThread = platform->currentThread()) {
     DCHECK(!s_endOfTaskRunner);
     s_endOfTaskRunner = new EndOfTaskRunner;
     currentThread->addTaskObserver(s_endOfTaskRunner);
   }
 }
 
 void shutdown() {
   ThreadState::current()->cleanupMainThread();
@@ skipping 59 matching lines @@
 void MemoryPressureNotificationToWorkerThreadIsolates(
     v8::MemoryPressureLevel level) {
   WorkerBackingThread::MemoryPressureNotificationToWorkerThreadIsolates(level);
 }
 
 void setRAILModeOnWorkerThreadIsolates(v8::RAILMode railMode) {
   WorkerBackingThread::setRAILModeOnWorkerThreadIsolates(railMode);
 }
 
 }  // namespace blink