ozone: evdev: Use kernel timestamps for mouse events

ui/events/event.h

 // 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.
 
 #ifndef UI_EVENTS_EVENT_H_
 #define UI_EVENTS_EVENT_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/event_types.h"
@@ skipping 442 matching lines @@
                   T* source,
                   T* target)
       : MouseEvent(model, source, target, model.type(), model.flags()),
         offset_(model.x_offset(), model.y_offset()) {
   }
 
   // Used for synthetic events in testing and by the gesture recognizer.
   MouseWheelEvent(const gfx::Vector2d& offset,
                   const gfx::PointF& location,
                   const gfx::PointF& root_location,
+                  base::TimeDelta time_stamp,
                   int flags,
                   int changed_button_flags);
 
   // The amount to scroll. This is in multiples of kWheelDelta.
   // Note: x_offset() > 0/y_offset() > 0 means scroll left/up.
   int x_offset() const { return offset_.x(); }
   int y_offset() const { return offset_.y(); }
   const gfx::Vector2d& offset() const { return offset_; }
 
   // Overridden from LocatedEvent.
@@ skipping 404 matching lines @@
 
   const GestureEventDetails& details() const { return details_; }
 
  private:
   GestureEventDetails details_;
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_EVENT_H_