Enable Oilpan by default for webaudio/

Source/modules/webaudio/AudioParam.h

 /*
  * 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
@@ skipping 18 matching lines @@
 #ifndef AudioParam_h
 #define AudioParam_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "modules/webaudio/AudioContext.h"
 #include "modules/webaudio/AudioParamTimeline.h"
 #include "modules/webaudio/AudioSummingJunction.h"
 #include <sys/types.h>
 #include "wtf/Float32Array.h"
 #include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class AudioNodeOutput;
 
-#if ENABLE(OILPAN)
-#define AUDIO_PARAM_BASE_CLASSES public AudioSummingJunction, public ScriptWrappable
-#else
-#define AUDIO_PARAM_BASE_CLASSES public RefCounted<AudioParam>, public ScriptWrappable, public AudioSummingJunction
-#endif
-class AudioParam FINAL : AUDIO_PARAM_BASE_CLASSES {
+class AudioParam FINAL : public AudioSummingJunction, public ScriptWrappable {
 public:
     static const double DefaultSmoothingConstant;
     static const double SnapThreshold;
 
-    static PassRefPtrWillBeRawPtr<AudioParam> create(AudioContext* context, double defaultValue)
+    static AudioParam* create(AudioContext* context, double defaultValue)
     {
-        return adoptRefWillBeNoop(new AudioParam(context, defaultValue));
+        return new AudioParam(context, defaultValue);
     }
 
     // AudioSummingJunction
     virtual bool canUpdateState() OVERRIDE { return true; }
     virtual void didUpdate() OVERRIDE { }
 
     // Intrinsic value.
     float value();
     void setValue(float);
 
@@ skipping 52 matching lines @@
 
     // Smoothing (de-zippering)
     double m_smoothedValue;
 
     AudioParamTimeline m_timeline;
 };
 
 } // namespace blink
 
 #endif // AudioParam_h