Add the actual location coordinates to the touch cancel event

ui/aura/window_event_dispatcher.cc

Index: ui/aura/window_event_dispatcher.cc
diff --git a/ui/aura/window_event_dispatcher.cc b/ui/aura/window_event_dispatcher.cc
index 350066f7dd31e9e08c9ca72bf5f77377ab547e3e..c46dd2cac5298a7813a4af01407c322d7cc4d6d6 100644
--- a/ui/aura/window_event_dispatcher.cc
+++ b/ui/aura/window_event_dispatcher.cc
@@ -22,6 +22,7 @@
 #include "ui/base/hit_test.h"
 #include "ui/compositor/dip_util.h"
 #include "ui/events/event.h"
+#include "ui/events/event_constants.h"

[tdresser, 2014/08/13 19:57:58]

Is this necessary?

[lanwei, 2014/08/14 00:38:46]

No, forgot to delete it.
Done.

 #include "ui/events/gestures/gesture_recognizer.h"
 #include "ui/events/gestures/gesture_types.h"
 
@@ -140,7 +141,6 @@ void WindowEventDispatcher::DispatchGestureEvent(ui::GestureEvent* event) {
   DispatchDetails details = DispatchHeldEvents();
   if (details.dispatcher_destroyed)
     return;
-
   Window* target = GetGestureTarget(event);
   if (target) {
     event->ConvertLocationToTarget(window(), target);
@@ -530,6 +530,7 @@ bool WindowEventDispatcher::CanDispatchToConsumer(
 }
 
 void WindowEventDispatcher::DispatchCancelTouchEvent(ui::TouchEvent* event) {
+  event->UpdateForRootTransform(host_->GetRootTransform());

[tdresser, 2014/08/13 19:57:58]

Add a comment indicating why this is here.

[lanwei, 2014/08/14 00:38:46]

Done.

   DispatchDetails details = OnEventFromSource(event);
   if (details.dispatcher_destroyed)
     return;