Enable Oilpan by default for webaudio/

Source/modules/webaudio/AsyncAudioDecoder.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 62 matching lines @@
 }
 
 void AsyncAudioDecoder::notifyComplete(ArrayBuffer* audioData, AudioBufferCallback* successCallback, AudioBufferCallback* errorCallback, AudioBus* audioBus)
 {
     // Adopt references, so everything gets correctly dereffed.
     RefPtr<ArrayBuffer> audioDataRef = adoptRef(audioData);
     OwnPtr<AudioBufferCallback> successCallbackPtr = adoptPtr(successCallback);
     OwnPtr<AudioBufferCallback> errorCallbackPtr = adoptPtr(errorCallback);
     RefPtr<AudioBus> audioBusRef = adoptRef(audioBus);
 
-    RefPtrWillBeRawPtr<AudioBuffer> audioBuffer = AudioBuffer::createFromAudioBus(audioBus);
-    if (audioBuffer.get() && successCallback)
-        successCallback->handleEvent(audioBuffer.get());
+    AudioBuffer* audioBuffer = AudioBuffer::createFromAudioBus(audioBus);
+    if (audioBuffer && successCallback)
+        successCallback->handleEvent(audioBuffer);
     else if (errorCallback)
-        errorCallback->handleEvent(audioBuffer.get());
+        errorCallback->handleEvent(audioBuffer);
 }
 
 } // namespace blink
 
 #endif // ENABLE(WEB_AUDIO)