Replace old with new synthetic gesture framework.

content/port/browser/synthetic_gesture.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_PORT_BROWSER_SYNTHETIC_GESTURE_H_
-#define CONTENT_PORT_BROWSER_SYNTHETIC_GESTURE_H_
-
-#include "base/memory/ref_counted.h"
-#include "base/time/time.h"
-
-namespace content {
-
-class RenderWidgetHost;
-
-// This is a base class representing a single scroll gesture. These gestures are
-// paired with the rendering benchmarking system to (automatically) measure how
-// smoothnly chrome is responding to user input.
-class SyntheticGesture : public base::RefCounted<SyntheticGesture> {
- public:
-
-  // When called, the gesture should compute its state at the provided timestamp
-  // and send the right input events to the provided RenderWidgetHost to
-  // simulate the gesture having run up to that point in time.
-  //
-  // This function should return true until the gesture is over. A false return
-  // value will stop ticking the gesture and clean it up.
-  virtual bool ForwardInputEvents(base::TimeTicks now,
-                                  RenderWidgetHost* host) = 0;
- protected:
-  friend class base::RefCounted<SyntheticGesture>;
-  virtual ~SyntheticGesture() {}
-};
-
-} // namespace content
-
-#endif // CONTENT_PORT_BROWSER_SYNTHETIC_GESTURE_H_