Support GestureBegin and GestureEnd in ui::GestureProvider

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index 8606d5cd47712beb0675f21298f964e653eb0415..b6e4d71d9ec338fefe818b7b245008d364059cd7 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -369,8 +369,9 @@ void ContentViewCoreImpl::RenderViewReady() {
 }
 
 void ContentViewCoreImpl::OnGestureEvent(const ui::GestureEventData& gesture) {
-  SendGestureEvent(
-      CreateWebGestureEventFromGestureEventData(gesture, 1.f / dpi_scale()));
+  WebGestureEvent event =
+      CreateWebGestureEventFromGestureEventData(gesture, 1.f / dpi_scale());
+  DCHECK_NE(event.type, WebInputEvent::Undefined)

[jdduke (slow), 2014/04/03 22:03:28]

Hmm, I think your change to CreateWebGestureEventFromGestureEventData should be
sufficient here, you can just change this back to how it was.

[tdresser, 2014/04/04 16:39:31]

Done.

 }
 
 RenderWidgetHostViewAndroid*