Replace ENABLE(ASSERT) with DCHECK_IS_ON().

third_party/WebKit/Source/modules/webaudio/DeferredTaskHandler.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 110 matching lines @@
   }
 
   void lock();
   bool tryLock();
   void unlock();
 
   // This locks the audio render thread for OfflineAudioContext rendering.
   // MUST NOT be used in the real-time audio context.
   void offlineLock();
 
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
   // Returns true if this thread owns the context's lock.
   bool isGraphOwner();
 #endif
 
   class MODULES_EXPORT AutoLocker {
     STACK_ALLOCATED();
 
    public:
     explicit AutoLocker(DeferredTaskHandler& handler) : m_handler(handler) {
       m_handler.lock();
@@ skipping 60 matching lines @@
   Vector<RefPtr<AudioHandler>> m_deletableOrphanHandlers;
 
   // Graph locking.
   RecursiveMutex m_contextGraphMutex;
   volatile ThreadIdentifier m_audioThread;
 };
 
 }  // namespace blink
 
 #endif  // DeferredTaskHandler_h