Backed out changeset a2d46929bcbd

layout/base/nsPresShell.cpp

@@ -4438,9 +4438,9 @@ PresShell::DispatchSynthMouseMove(nsGUIEvent *aEvent,
 {
   PRUint32 hoverGenerationBefore = mFrameConstructor->GetHoverGeneration();
   nsEventStatus status;
-  nsIView* targetView;
-  targetView = nsIView::GetViewFor(aEvent->widget);
-  mViewManager->DispatchEvent(aEvent, targetView, &status);
+  nsIView* rootView;
+  mViewManager->GetRootView(rootView);
+  mViewManager->DispatchEvent(aEvent, rootView, &status);
   if (aFlushOnHoverChange &&
       hoverGenerationBefore != mFrameConstructor->GetHoverGeneration()) {
     // Flush so that the resulting reflow happens now so that our caller