Remove ASSERT_UNUSED

third_party/WebKit/Source/wtf/ThreadRestrictionVerifier.h

 /*
  * Copyright (C) 2011 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 70 matching lines @@
 
  private:
   // Indicates that the object may (or may not) be owned by more than one place.
   void setShared(bool shared) {
     bool previouslyShared = m_shared;
     m_shared = shared;
 
     if (!m_shared)
       return;
 
-    ASSERT_UNUSED(previouslyShared, shared != previouslyShared);
+    DCHECK_NE(shared, previouslyShared);
     // Capture the current thread to verify that subsequent ref/deref happen on
     // this thread.
     m_owningThread = currentThread();
   }
 
   // Is it OK to use the object at this moment on the current thread?
   bool isSafeToUse() const {
     if (!m_shared)
       return true;
 
     return m_owningThread == currentThread();
   }
 
   bool m_shared;
 
   ThreadIdentifier m_owningThread;
 };
 
 }  // namespace WTF
 
 #endif  // ENABLE(ASSERT)
 #endif  // ThreadRestrictionVerifier_h