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

content/common/input/synthetic_web_input_event_builders.cc

Index: content/common/input/synthetic_web_input_event_builders.cc
diff --git a/content/common/input/synthetic_web_input_event_builders.cc b/content/common/input/synthetic_web_input_event_builders.cc
index c68c689c09be8fa8ac679127f4477d997c4d25cf..17d26108641f61c3b75ce52fea229fb7725ab636 100644
--- a/content/common/input/synthetic_web_input_event_builders.cc
+++ b/content/common/input/synthetic_web_input_event_builders.cc
@@ -169,7 +169,7 @@ WebGestureEvent SyntheticWebGestureEventBuilder::BuildFling(
 
 SyntheticWebTouchEvent::SyntheticWebTouchEvent() : WebTouchEvent() {
   uniqueTouchEventId = ui::GetNextTouchEventId();
-  SetTimestamp(base::TimeTicks::Now() - base::TimeTicks());
+  SetTimestamp(base::TimeTicks::Now());
 }
 
 void SyntheticWebTouchEvent::ResetPoints() {
@@ -236,8 +236,8 @@ void SyntheticWebTouchEvent::CancelPoint(int index) {
       WebInputEvent::TouchCancel, timeStampSeconds, this);
 }
 
-void SyntheticWebTouchEvent::SetTimestamp(base::TimeDelta timestamp) {
-  timeStampSeconds = timestamp.InSecondsF();
+void SyntheticWebTouchEvent::SetTimestamp(base::TimeTicks timestamp) {
+  timeStampSeconds = ui::EventTimeStampToSeconds(timestamp);
 }
 
 }  // namespace content