Index: ui/events/blink/blink_event_util.cc |
diff --git a/ui/events/blink/blink_event_util.cc b/ui/events/blink/blink_event_util.cc |
index 835a82b243640998d7c35ad7a64114c2800d440c..35c307efea919f6e6a9d022a8820bdabad173a56 100644 |
--- a/ui/events/blink/blink_event_util.cc |
+++ b/ui/events/blink/blink_event_util.cc |
@@ -142,6 +142,8 @@ blink::WebTouchEvent CreateWebTouchEventFromMotionEvent( |
(event.GetEventTime() - base::TimeTicks()).InSecondsF(), |
result.causesScrollingIfUncanceled = may_cause_scrolling; |
result.modifiers = EventFlagsToWebEventModifiers(event.GetFlags()); |
+ DCHECK_NE(event.GetUniqueEventId(), 0U); |
+ result.uniqueTouchEventId = event.GetUniqueEventId(); |
result.touchesLength = |
std::min(static_cast<unsigned>(event.GetPointerCount()), |
static_cast<unsigned>(WebTouchEvent::touchesLengthCap)); |