InlinedVisitor: Migrate html to use inlined tracing

Source/core/html/MediaController.h

 /*
  * Copyright (C) 2011 Apple 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 69 matching lines @@
     enum PlaybackState { WAITING, PLAYING, ENDED };
     const AtomicString& playbackState() const;
 
     bool isRestrained() const;
     bool isBlocked() const;
 
 #if !ENABLE(OILPAN)
     void clearExecutionContext() { m_executionContext = nullptr; }
 #endif
 
-    virtual void trace(Visitor*) override;
+    DECLARE_VIRTUAL_TRACE();
 
 private:
     MediaController(ExecutionContext*);
     void reportControllerState();
     void updateReadyState();
     void updatePlaybackState();
     void updateMediaElements();
     void bringElementUpToSpeed(HTMLMediaElement*);
     void scheduleEvent(const AtomicString& eventName);
     void clearPositionTimerFired(Timer<MediaController>*);
@@ skipping 25 matching lines @@
     mutable Timer<MediaController> m_clearPositionTimer;
     OwnPtr<Clock> m_clock;
     RawPtrWillBeWeakMember<ExecutionContext> m_executionContext;
     Timer<MediaController> m_timeupdateTimer;
     double m_previousTimeupdateTime;
 };
 
 } // namespace blink
 
 #endif // MediaController_h