Introduce WebTaskRunner Patch 3/5

Source/modules/webaudio/AbstractAudioContext.cpp

 /*
  * Copyright (C) 2010, 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:
  * 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 752 matching lines @@
 {
     // This runs inside the AbstractAudioContext's lock when handling pre-render tasks.
     ASSERT(isAudioThread());
     ASSERT(isGraphOwner());
 
     // Resolve any pending promises created by resume(). Only do this if we haven't already started
     // resolving these promises. This gets called very often and it takes some time to resolve the
     // promises in the main thread.
     if (!m_isResolvingResumePromises && m_resumeResolvers.size() > 0) {
         m_isResolvingResumePromises = true;
-        Platform::current()->mainThread()->postTask(FROM_HERE, threadSafeBind(&AbstractAudioContext::resolvePromisesForResumeOnMainThread, this));
+        Platform::current()->mainThread()->taskRunner()->postTask(FROM_HERE, threadSafeBind(&AbstractAudioContext::resolvePromisesForResumeOnMainThread, this));
     }
 }
 
 void AbstractAudioContext::rejectPendingResolvers()
 {
     ASSERT(isMainThread());
 
     // Audio context is closing down so reject any resume promises that are still pending.
 
     for (auto& resolver : m_resumeResolvers) {
@@ skipping 72 matching lines @@
 {
     if (executionContext())
         return executionContext()->securityOrigin();
 
     return nullptr;
 }
 
 } // namespace blink
 
 #endif // ENABLE(WEB_AUDIO)