compositor-worker: Get the thread to run compositor-workers from the Platform.

Source/core/workers/WorkerThread.cpp

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 184 matching lines @@
 {
     MutexLocker locker(m_workerInspectorControllerMutex);
     if (m_workerInspectorController)
         m_workerInspectorController->interruptAndDispatchInspectorCommands();
 }
 
 PlatformThreadId WorkerThread::platformThreadId()
 {
     if (!m_started)
         return 0;
-    return backingThread().platformThread().threadId();
+    return backingThread().threadId();
 }
 
 void WorkerThread::initialize(PassOwnPtr<WorkerThreadStartupData> startupData)
 {
     KURL scriptURL = startupData->m_scriptURL;
     String sourceCode = startupData->m_sourceCode;
     WorkerThreadStartMode startMode = startupData->m_startMode;
     OwnPtr<Vector<char>> cachedMetaData = startupData->m_cachedMetaData.release();
     V8CacheOptions v8CacheOptions = startupData->m_v8CacheOptions;
-    m_webScheduler = backingThread().platformThread().scheduler();
+    m_webScheduler = backingThread().scheduler();
 
     {
         MutexLocker lock(m_threadStateMutex);
 
         // The worker was terminated before the thread had a chance to run.
         if (m_terminated) {
             // Notify the proxy that the WorkerGlobalScope has been disposed of.
             // This can free this thread object, hence it must not be touched afterwards.
             m_workerReportingProxy.workerThreadTerminated();
             // Notify the main thread that it is safe to deallocate our resources.
@@ skipping 182 matching lines @@
     if (deadlineSeconds > Platform::current()->monotonicallyIncreasingTime())
         gcFinished = isolate()->IdleNotificationDeadline(deadlineSeconds);
     return gcFinished;
 }
 
 void WorkerThread::postTask(const WebTraceLocation& location, PassOwnPtr<ExecutionContextTask> task)
 {
     backingThread().postTask(location, WorkerThreadTask::create(*this, task, true).leakPtr());
 }
 
-void WorkerThread::postDelayedTask(const WebTraceLocation& location, PassOwnPtr<ExecutionContextTask> task, long long delayMs)
-{
-    backingThread().postDelayedTask(location, WorkerThreadTask::create(*this, task, true).leakPtr(), delayMs);
-}
-
 void WorkerThread::initializeBackingThread()
 {
     ASSERT(isCurrentThread());
-    backingThread().initialize();
+    m_gcSupport = GCSupportForWebThread::create(backingThread());
 }
 
 void WorkerThread::shutdownBackingThread()
 {
     ASSERT(isCurrentThread());
-    backingThread().shutdown();
+    m_webScheduler->shutdown();
+    m_gcSupport.clear();
 }
 
 v8::Isolate* WorkerThread::initializeIsolate()
 {
     ASSERT(isCurrentThread());
     ASSERT(!m_isolate);
     v8::Isolate* isolate = V8PerIsolateData::initialize();
     V8Initializer::initializeWorker(isolate);
 
     OwnPtr<V8IsolateInterruptor> interruptor = adoptPtr(new V8IsolateInterruptor(isolate));
@@ skipping 64 matching lines @@
     InspectorInstrumentation::didLeaveNestedRunLoop(m_workerGlobalScope.get());
 }
 
 void WorkerThread::setWorkerInspectorController(WorkerInspectorController* workerInspectorController)
 {
     MutexLocker locker(m_workerInspectorControllerMutex);
     m_workerInspectorController = workerInspectorController;
 }
 
 } // namespace blink