Refactor the Heap into ThreadHeap to prepare for per thread heaps

third_party/WebKit/Source/core/html/HTMLMediaElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 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 424 matching lines @@
     // it is being destroyed, the connection to the Document will
     // have been severed already, but in that case there is no need
     // to update the delayed load count. But if the Document hasn't
     // been detached cleanly from any frame or it isn't dying in the
     // same GC, we do update the delayed load count from the prefinalizer.
     if (ActiveDOMObject::getExecutionContext())
         setShouldDelayLoadEvent(false);
 
     // If the MediaSource object survived, notify that the media element
     // didn't.
-    if (Heap::isHeapObjectAlive(m_mediaSource))
+    if (ThreadHeap::isHeapObjectAlive(m_mediaSource))
         closeMediaSource();
 
     // Oilpan: the player must be released, but the player object
     // cannot safely access this player client any longer as parts of
     // it may have been finalized already (like the media element's
     // supplementable table.)  Handled for now by entering an
     // is-finalizing state, which is explicitly checked for if the
     // player tries to access the media element during shutdown.
     //
     // FIXME: Oilpan: move the media player to the heap instead and
@@ skipping 3290 matching lines @@
     ASSERT(code == AbortError || code == NotSupportedError);
 
     for (auto& resolver: m_playResolvers)
         resolver->reject(DOMException::create(code, message));
 
     m_playResolvers.clear();
 }
 
 void HTMLMediaElement::clearWeakMembers(Visitor* visitor)
 {
-    if (!Heap::isHeapObjectAlive(m_audioSourceNode))
+    if (!ThreadHeap::isHeapObjectAlive(m_audioSourceNode))
         getAudioSourceProvider().setClient(nullptr);
 }
 
 void HTMLMediaElement::AudioSourceProviderImpl::wrap(WebAudioSourceProvider* provider)
 {
     MutexLocker locker(provideInputLock);
 
     if (m_webAudioSourceProvider && provider != m_webAudioSourceProvider)
         m_webAudioSourceProvider->setClient(nullptr);
 
@@ skipping 44 matching lines @@
 {
     visitor->trace(m_client);
 }
 
 DEFINE_TRACE(HTMLMediaElement::AudioSourceProviderImpl)
 {
     visitor->trace(m_client);
 }
 
 } // namespace blink