gesture recognizer: Reset velocities of the fingers after a pinch-end/swipe-end.

ui/base/gestures/gesture_point.cc

Index: ui/base/gestures/gesture_point.cc
diff --git a/ui/base/gestures/gesture_point.cc b/ui/base/gestures/gesture_point.cc
index fc94f72838fd34bd241d984772b0ea4b90dfa471..a9426d258ff7af7e4b02b0094d2b7c92e4954495 100644
--- a/ui/base/gestures/gesture_point.cc
+++ b/ui/base/gestures/gesture_point.cc
@@ -30,6 +30,10 @@ void GesturePoint::Reset() {
   point_id_ = -1;
 }
 
+void GesturePoint::ResetVelocity() {
+  velocity_calculator_.ClearHistory();
+}
+
 void GesturePoint::UpdateValues(const TouchEvent& event) {
   const int64 event_timestamp_microseconds =
       event.GetTimestamp().InMicroseconds();