Add timestamps to synthesized events.

content/browser/renderer_host/input/synthetic_tap_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_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_TAP_GESTURE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_TAP_GESTURE_H_
 
 #include "content/browser/renderer_host/input/synthetic_gesture.h"
 #include "content/browser/renderer_host/input/synthetic_gesture_target.h"
 #include "content/common/content_export.h"
 #include "content/common/input/synthetic_tap_gesture_params.h"
 #include "content/common/input/synthetic_web_input_event_builders.h"
 
 namespace content {
 
 class CONTENT_EXPORT SyntheticTapGesture : public SyntheticGesture {
  public:
   explicit SyntheticTapGesture(const SyntheticTapGestureParams& params);
   virtual ~SyntheticTapGesture();
 
   virtual SyntheticGesture::Result ForwardInputEvents(
-      const base::TimeDelta& interval, SyntheticGestureTarget* target) OVERRIDE;
+      const base::TimeTicks& timestamp,
+      SyntheticGestureTarget* target) OVERRIDE;
 
  private:
   enum GestureState {
     SETUP,
     PRESS,
     WAITING_TO_RELEASE,
     DONE
   };
 
-  void ForwardTouchOrMouseInputEvents(const base::TimeDelta& interval,
+  void ForwardTouchOrMouseInputEvents(const base::TimeTicks& timestamp,
                                       SyntheticGestureTarget* target);
 
-  void Press(SyntheticGestureTarget* target);
-  void Release(SyntheticGestureTarget* target);
+  void Press(SyntheticGestureTarget* target, const base::TimeTicks& timestamp);
+  void Release(SyntheticGestureTarget* target,
+               const base::TimeTicks& timestamp);
+
+  base::TimeDelta GetDuration() const;
 
   SyntheticTapGestureParams params_;
-  base::TimeDelta total_waiting_time_;
+  base::TimeTicks start_time_;
   SyntheticWebTouchEvent touch_event_;
   SyntheticGestureParams::GestureSourceType gesture_source_type_;
   GestureState state_;
 
   DISALLOW_COPY_AND_ASSIGN(SyntheticTapGesture);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_TAP_GESTURE_H_