Enable Oilpan by default for webaudio/

Source/modules/webaudio/MediaElementAudioSourceNode.cpp

 /*
  * Copyright (C) 2011, 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 23 matching lines @@
 #include "platform/Logging.h"
 #include "platform/graphics/media/MediaPlayer.h"
 #include "wtf/Locker.h"
 
 // These are somewhat arbitrary limits, but we need to do some kind of sanity-checking.
 const unsigned minSampleRate = 8000;
 const unsigned maxSampleRate = 192000;
 
 namespace blink {
 
-PassRefPtrWillBeRawPtr<MediaElementAudioSourceNode> MediaElementAudioSourceNode::create(AudioContext* context, HTMLMediaElement* mediaElement)
+MediaElementAudioSourceNode* MediaElementAudioSourceNode::create(AudioContext* context, HTMLMediaElement* mediaElement)
 {
-    return adoptRefWillBeNoop(new MediaElementAudioSourceNode(context, mediaElement));
+    return adoptRefCountedGarbageCollectedWillBeNoop(new MediaElementAudioSourceNode(context, mediaElement));
 }
 
 MediaElementAudioSourceNode::MediaElementAudioSourceNode(AudioContext* context, HTMLMediaElement* mediaElement)
     : AudioSourceNode(context, context->sampleRate())
     , m_mediaElement(mediaElement)
     , m_sourceNumberOfChannels(0)
     , m_sourceSampleRate(0)
 {
     ScriptWrappable::init(this);
     // Default to stereo. This could change depending on what the media element
@@ skipping 81 matching lines @@
             outputBus->zero();
         }
     } else {
         // We failed to acquire the lock.
         outputBus->zero();
     }
 }
 
 void MediaElementAudioSourceNode::lock()
 {
-#if !ENABLE(OILPAN)
-    ref();
-#endif
     m_processLock.lock();
 }
 
 void MediaElementAudioSourceNode::unlock()
 {
     m_processLock.unlock();
-#if !ENABLE(OILPAN)
-    deref();
-#endif
 }
 
 void MediaElementAudioSourceNode::trace(Visitor* visitor)
 {
     visitor->trace(m_mediaElement);
     AudioSourceNode::trace(visitor);
     AudioSourceProviderClient::trace(visitor);
 }
 
 } // namespace blink
 
 #endif // ENABLE(WEB_AUDIO)