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

ash/touch/touch_uma.cc

 // Copyright (c) 2012 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_uma.h"
 
 #include "ash/metrics/user_metrics_recorder.h"
 #include "ash/shell.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/stringprintf.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/aura/window_property.h"
 #include "ui/events/event.h"
 #include "ui/events/event_utils.h"
 #include "ui/gfx/geometry/point_conversions.h"
 
 #if defined(USE_X11)
 #include <X11/extensions/XInput2.h>
 #include <X11/Xlib.h>
 #endif
 
 namespace {
 
 struct WindowTouchDetails {
   // Move and start times of the touch points. The key is the touch-id.
-  std::map<int, base::TimeDelta> last_move_time_;
-  std::map<int, base::TimeDelta> last_start_time_;
+  std::map<int, base::TimeTicks> last_move_time_;
+  std::map<int, base::TimeTicks> last_start_time_;
 
   // The first and last positions of the touch points.
   std::map<int, gfx::Point> start_touch_position_;
   std::map<int, gfx::Point> last_touch_position_;
 
   // Last time-stamp of the last touch-end event.
-  base::TimeDelta last_release_time_;
+  base::TimeTicks last_release_time_;
 
   // Stores the time of the last touch released on this window (if there was a
   // multi-touch gesture on the window, then this is the release-time of the
   // last touch on the window).
-  base::TimeDelta last_mt_time_;
+  base::TimeTicks last_mt_time_;
 };
 
 DEFINE_OWNED_WINDOW_PROPERTY_KEY(WindowTouchDetails,
                                  kWindowTouchDetails,
                                  NULL);
 }
 
 DECLARE_WINDOW_PROPERTY_TYPE(WindowTouchDetails*);
 
 namespace ash {
@@ skipping 247 matching lines @@
       return GESTURE_OMNIBOX_SCROLL;
     if (event.type() == ui::ET_GESTURE_PINCH_BEGIN)
       return GESTURE_OMNIBOX_PINCH;
     return GESTURE_UNKNOWN;
   }
 
   return GESTURE_UNKNOWN;
 }
 
 }  // namespace ash