Unbreak release component builds on Windows after https://codereview.chromium.org/2014343002/

third_party/WebKit/Source/modules/webaudio/AbstractAudioContext.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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 214 matching lines @@
     DeferredTaskHandler& deferredTaskHandler() const { return *m_deferredTaskHandler; }
     //
     // Thread Safety and Graph Locking:
     //
     // The following functions call corresponding functions of
     // DeferredTaskHandler.
     bool isAudioThread() const { return deferredTaskHandler().isAudioThread(); }
     void lock() { deferredTaskHandler().lock(); }
     bool tryLock() { return deferredTaskHandler().tryLock(); }
     void unlock() { deferredTaskHandler().unlock(); }
+#if ENABLE(ASSERT)
     // Returns true if this thread owns the context's lock.
     bool isGraphOwner() { return deferredTaskHandler().isGraphOwner(); }
+#endif
     using AutoLocker = DeferredTaskHandler::AutoLocker;
 
     // Returns the maximum numuber of channels we can support.
     static unsigned maxNumberOfChannels() { return MaxNumberOfChannels;}
 
     // EventTarget
     const AtomicString& interfaceName() const final;
     ExecutionContext* getExecutionContext() const final;
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(statechange);
@@ skipping 115 matching lines @@
     Member<PeriodicWave> m_periodicWaveTriangle;
 
     // This is considering 32 is large enough for multiple channels audio.
     // It is somewhat arbitrary and could be increased if necessary.
     enum { MaxNumberOfChannels = 32 };
 };
 
 } // namespace blink
 
 #endif // AbstractAudioContext_h