Enable Oilpan by default for webaudio/

Source/web/WebMediaPlayerClientImpl.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 86 matching lines @@
 
     HTMLMediaElement& mediaElement() const;
 
     MediaPlayerClient* m_client;
     OwnPtr<WebMediaPlayer> m_webMediaPlayer;
 
 #if ENABLE(WEB_AUDIO)
     // AudioClientImpl wraps an AudioSourceProviderClient.
     // When the audio format is known, Chromium calls setFormat() which then dispatches into WebCore.
 
-    class AudioClientImpl FINAL : public NoBaseWillBeGarbageCollectedFinalized<AudioClientImpl>, public WebAudioSourceProviderClient {
+    class AudioClientImpl FINAL : public GarbageCollectedFinalized<AudioClientImpl>, public WebAudioSourceProviderClient {
     public:
         explicit AudioClientImpl(AudioSourceProviderClient* client)
             : m_client(client)
         {
         }
 
         virtual ~AudioClientImpl() { }
 
         // WebAudioSourceProviderClient
         virtual void setFormat(size_t numberOfChannels, float sampleRate) OVERRIDE;
 
         void trace(Visitor*);
 
     private:
-        RawPtrWillBeMember<AudioSourceProviderClient> m_client;
+        Member<AudioSourceProviderClient> m_client;
     };
 
     // AudioSourceProviderImpl wraps a WebAudioSourceProvider.
     // provideInput() calls into Chromium to get a rendered audio stream.
 
     class AudioSourceProviderImpl FINAL : public AudioSourceProvider {
     public:
         AudioSourceProviderImpl()
             : m_webAudioSourceProvider(0)
         {
         }
 
         virtual ~AudioSourceProviderImpl() { }
 
         // Wraps the given WebAudioSourceProvider.
         void wrap(WebAudioSourceProvider*);
 
         // AudioSourceProvider
         virtual void setClient(AudioSourceProviderClient*) OVERRIDE;
         virtual void provideInput(AudioBus*, size_t framesToProcess) OVERRIDE;
 
     private:
         WebAudioSourceProvider* m_webAudioSourceProvider;
-        OwnPtrWillBePersistent<AudioClientImpl> m_client;
+        Persistent<AudioClientImpl> m_client;
         Mutex provideInputLock;
     };
 
     AudioSourceProviderImpl m_audioSourceProvider;
 #endif
 };
 
 } // namespace blink
 
 #endif