Revert 236254 "Replace old with new synthetic gesture framework."

trunk/src/content/browser/renderer_host/synthetic_gesture_calculator.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_SYNTHETIC_GESTURE_CALCULATOR_H_
 #define CONTENT_BROWSER_RENDERER_HOST_SYNTHETIC_GESTURE_CALCULATOR_H_
 
 #include "base/time/time.h"
 
 namespace content {
 
 // A utility class to calculate the delta for synthetic gesture events.
 class SyntheticGestureCalculator {
  public:
   SyntheticGestureCalculator();
   ~SyntheticGestureCalculator();
 
   float GetDelta(base::TimeTicks now, base::TimeDelta desired_interval);
 
  private:
   base::TimeTicks last_tick_time_;
 
   DISALLOW_COPY_AND_ASSIGN(SyntheticGestureCalculator);
 };
 
 } // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_SYNTHETIC_GESTURE_CALCULATOR_H_