Delegate dragend to the correct frame's EventHandler.

third_party/WebKit/Source/core/input/MouseEventManager.cpp

Index: third_party/WebKit/Source/core/input/MouseEventManager.cpp
diff --git a/third_party/WebKit/Source/core/input/MouseEventManager.cpp b/third_party/WebKit/Source/core/input/MouseEventManager.cpp
index 34e32b79981294c4542d26317a7d407db563a378..92deb7c26787c5854fd1489be7ff588db0f2b205 100644
--- a/third_party/WebKit/Source/core/input/MouseEventManager.cpp
+++ b/third_party/WebKit/Source/core/input/MouseEventManager.cpp
@@ -907,11 +907,6 @@ void MouseEventManager::clearDragDataTransfer() {
 
 void MouseEventManager::dragSourceEndedAt(const PlatformMouseEvent& event,
                                           DragOperation operation) {
-  // Send a hit test request so that Layer gets a chance to update the :hover
-  // and :active pseudoclasses..
-  HitTestRequest request(HitTestRequest::Release);
-  EventHandlingUtil::performMouseEventHitTest(m_frame, request, event);
-
   if (dragState().m_dragSrc) {
     dragState().m_dragDataTransfer->setDestinationOperation(operation);
     // For now we don't care if event handler cancels default behavior, since