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

ui/aura/gestures/gesture_recognizer_unittest.cc

Index: ui/aura/gestures/gesture_recognizer_unittest.cc
diff --git a/ui/aura/gestures/gesture_recognizer_unittest.cc b/ui/aura/gestures/gesture_recognizer_unittest.cc
index eaffd6b6616a3c40b3b7162cb2314ab424fd76ca..7cc703ad66f7fb21adb1f4c451c7e3110de2eb85 100644
--- a/ui/aura/gestures/gesture_recognizer_unittest.cc
+++ b/ui/aura/gestures/gesture_recognizer_unittest.cc
@@ -489,19 +489,19 @@ class TimedEvents {
   TimedEvents() : simulated_now_(1) {
   }
 
-  base::TimeDelta Now() {
-    base::TimeDelta t = base::TimeDelta::FromMilliseconds(simulated_now_);
+  base::TimeTicks Now() {
+    base::TimeTicks t = base::TimeTicks::FromInternalValue(simulated_now_);
     simulated_now_++;
     return t;
   }
 
-  base::TimeDelta LeapForward(int time_in_millis) {
+  base::TimeTicks LeapForward(int time_in_millis) {
     simulated_now_ += time_in_millis;
-    return base::TimeDelta::FromMilliseconds(simulated_now_);
+    return base::TimeTicks::FromInternalValue(simulated_now_);
   }
 
-  base::TimeDelta InFuture(int time_in_millis) {
-    return base::TimeDelta::FromMilliseconds(simulated_now_ + time_in_millis);
+  base::TimeTicks InFuture(int time_in_millis) {
+    return base::TimeTicks::FromInternalValue(simulated_now_ + time_in_millis);
   }
 
   void SendScrollEvents(ui::EventProcessor* dispatcher,
@@ -520,7 +520,7 @@ class TimedEvents {
       x += dx;
       y += dy;
       ui::TouchEvent move(ui::ET_TOUCH_MOVED, gfx::Point(x, y), touch_id,
-                          base::TimeDelta::FromMilliseconds(simulated_now_));
+                          base::TimeTicks::FromInternalValue(simulated_now_));
       ui::EventDispatchDetails details = dispatcher->OnEventFromSource(&move);
       ASSERT_FALSE(details.dispatcher_destroyed);
       simulated_now_ += time_step;
@@ -534,7 +534,7 @@ class TimedEvents {
                        GestureEventConsumeDelegate* delegate) {
     delegate->Reset();
     ui::TouchEvent move(ui::ET_TOUCH_MOVED, gfx::Point(), touch_id,
-                        base::TimeDelta::FromMilliseconds(simulated_now_));
+                        base::TimeTicks::FromInternalValue(simulated_now_));
     move.set_location_f(gfx::PointF(x, y));
     move.set_root_location_f(gfx::PointF(x, y));
     ui::EventDispatchDetails details = dispatcher->OnEventFromSource(&move);