Enable Oilpan by default for webaudio/

Source/modules/webaudio/AudioSummingJunction.cpp

 /*
  * Copyright (C) 2012, 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 21 matching lines @@
 #include "modules/webaudio/AudioNodeOutput.h"
 #include <algorithm>
 
 namespace blink {
 
 AudioSummingJunction::AudioSummingJunction(AudioContext* context)
     : m_context(context)
     , m_renderingStateNeedUpdating(false)
 {
     ASSERT(context);
-#if ENABLE(OILPAN)
     m_context->registerLiveAudioSummingJunction(*this);
-#endif
 }
 
 AudioSummingJunction::~AudioSummingJunction()
 {
-#if !ENABLE(OILPAN)
-    if (m_renderingStateNeedUpdating && m_context.get())
-        m_context->removeMarkedSummingJunction(this);
-#endif
 }
 
 void AudioSummingJunction::trace(Visitor* visitor)
 {
     visitor->trace(m_context);
 }
 
 void AudioSummingJunction::changedOutputs()
 {
     ASSERT(context()->isGraphOwner());
@@ skipping 18 matching lines @@
 
         didUpdate();
 
         m_renderingStateNeedUpdating = false;
     }
 }
 
 } // namespace blink
 
 #endif // ENABLE(WEB_AUDIO)