Enable precompiled headers for Blink on Windows

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 37 matching lines @@
 #include "wtf/PtrUtil.h"
 #include "wtf/WTF.h"
 #include "wtf/allocator/Partitions.h"
 #include "wtf/text/AtomicString.h"
 #include "wtf/text/TextEncoding.h"
 #include <memory>
 #include <v8.h>
 
 namespace blink {
 
-namespace {
+namespace helpers {

[Nico, 2016/07/14 19:58:52]

why is this needed?

[Daniel Bratell, 2016/07/15 06:43:55]

Doesn't seem to be needed. It used to be needed because there was a
MainThreadTaskRunner class here that collided (namewise) with other
MainThreadTaskRunner classes but that is gone. Also, this patch doesn't enable
pch for web.

 
 class EndOfTaskRunner : public WebThread::TaskObserver {
 public:
     void willProcessTask() override
     {
         AnimationClock::notifyTaskStart();
     }
     void didProcessTask() override
     {
         Microtask::performCheckpoint(mainThreadIsolate());
@@ skipping 15 matching lines @@
 {
     Platform::initialize(platform);
 
     V8Initializer::initializeMainThread();
 
     modulesInitializer().initialize();
 
     // 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;
+        s_endOfTaskRunner = new helpers::EndOfTaskRunner;
         currentThread->addTaskObserver(s_endOfTaskRunner);
     }
 }
 
 void shutdown()
 {
     ThreadState::current()->cleanupMainThread();
 
     // currentThread() is null if we are running on a thread without a message loop.
     if (Platform::current()->currentThread()) {
@@ skipping 80 matching lines @@
     WorkerBackingThread::
         MemoryPressureNotificationToWorkerThreadIsolates(level);
 }
 
 void setRAILModeOnWorkerThreadIsolates(v8::RAILMode railMode)
 {
     WorkerBackingThread::setRAILModeOnWorkerThreadIsolates(railMode);
 }
 
 } // namespace blink