Introduce WebTaskRunner Patch 3/5

Source/platform/WebThreadSupportingGC.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WebThreadSupportingGC_h
 #define WebThreadSupportingGC_h
 
 #include "platform/heap/glue/MessageLoopInterruptor.h"
 #include "platform/heap/glue/PendingGCRunner.h"
 #include "public/platform/Platform.h"
+#include "public/platform/WebTaskRunner.h"
 #include "public/platform/WebThread.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
 // WebThreadSupportingGC wraps a WebThread and adds support for attaching
 // to and detaching from the Blink GC infrastructure. The initialize method
 // must be called during initialization on the WebThread and before the
 // thread allocates any objects managed by the Blink GC. The shutdown
 // method must be called on the WebThread during shutdown when the thread
 // no longer needs to access objects managed by the Blink GC.
 //
 // WebThreadSupportingGC usually internally creates and owns WebThread unless
 // an existing WebThread is given via createForThread.
 class PLATFORM_EXPORT WebThreadSupportingGC final {
     WTF_MAKE_NONCOPYABLE(WebThreadSupportingGC);
 public:
     static PassOwnPtr<WebThreadSupportingGC> create(const char* name);
     static PassOwnPtr<WebThreadSupportingGC> createForThread(WebThread*);
     ~WebThreadSupportingGC();
 
-    void postTask(const WebTraceLocation& location, WebThread::Task* task)
+    void postTask(const WebTraceLocation& location, WebTaskRunner::Task* task)
     {
-        m_thread->postTask(location, task);
+        m_thread->taskRunner()->postTask(location, task);
     }
 
-    void postDelayedTask(const WebTraceLocation& location, WebThread::Task* task, long long delayMs)
+    void postDelayedTask(const WebTraceLocation& location, WebTaskRunner::Task* task, long long delayMs)
     {
-        m_thread->postDelayedTask(location, task, delayMs);
+        m_thread->taskRunner()->postDelayedTask(location, task, delayMs);
     }
 
     bool isCurrentThread() const
     {
         return m_thread->isCurrentThread();
     }
 
     void addTaskObserver(WebThread::TaskObserver* observer)
     {
         m_thread->addTaskObserver(observer);
@@ skipping 21 matching lines @@
     // m_thread is guaranteed to be non-null after this instance is constructed.
     // m_owningThread is non-null unless this instance is constructed for an
     // existing thread via createForThread().
     WebThread* m_thread = nullptr;
     OwnPtr<WebThread> m_owningThread;
 };
 
 }
 
 #endif