Change ui::Event::time_stamp from TimeDelta to TimeTicks

ash/touch/touch_hud_debug.cc

 // 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.
 
 #include "ash/touch/touch_hud_debug.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 78 matching lines @@
   return 0;
 }
 
 // A TouchPointLog represents a single touch-event of a touch point.
 struct TouchPointLog {
  public:
   explicit TouchPointLog(const ui::TouchEvent& touch)
       : id(touch.touch_id()),
         type(touch.type()),
         location(touch.root_location()),
-        timestamp(touch.time_stamp().InMillisecondsF()),
+        timestamp((touch.time_stamp() - base::TimeTicks()).InMillisecondsF()),
         radius_x(touch.pointer_details().radius_x),
         radius_y(touch.pointer_details().radius_y),
         pressure(touch.pointer_details().force),
         tracking_id(GetTrackingId(touch)),
         source_device(touch.source_device_id()) {}
 
   // Populates a dictionary value with all the information about the touch
   // point.
   std::unique_ptr<base::DictionaryValue> GetAsDictionary() const {
     std::unique_ptr<base::DictionaryValue> value(new base::DictionaryValue());
@@ skipping 363 matching lines @@
     RootWindowController* controller) {
   controller->set_touch_hud_debug(this);
 }
 
 void TouchHudDebug::UnsetHudForRootWindowController(
     RootWindowController* controller) {
   controller->set_touch_hud_debug(NULL);
 }
 
 }  // namespace ash