Remove user gesture tracking

sky/engine/core/frame/DOMTimer.h

 /*
  * Copyright (C) 2008 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 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 
 #ifndef SKY_ENGINE_CORE_FRAME_DOMTIMER_H_
 #define SKY_ENGINE_CORE_FRAME_DOMTIMER_H_
 
 #include "sky/engine/bindings/core/v8/ScheduledAction.h"
 #include "sky/engine/core/frame/SuspendableTimer.h"
-#include "sky/engine/platform/UserGestureIndicator.h"
 #include "sky/engine/wtf/Compiler.h"
 #include "sky/engine/wtf/OwnPtr.h"
 #include "sky/engine/wtf/PassOwnPtr.h"
 
 namespace blink {
 
 class ExecutionContext;
 
 class DOMTimer final : public SuspendableTimer {
 public:
@@ skipping 24 matching lines @@
 
     DOMTimer(ExecutionContext*, PassOwnPtr<ScheduledAction>, int interval, bool singleShot, int timeoutID);
     virtual void fired() override;
 
     // Retuns timer fire time rounded to the next multiple of timer alignment interval.
     virtual double alignedFireTime(double) const override;
 
     int m_timeoutID;
     int m_nestingLevel;
     OwnPtr<ScheduledAction> m_action;
-    RefPtr<UserGestureToken> m_userGestureToken;
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_FRAME_DOMTIMER_H_