Move check for gesture end events out of RootViewTargeter

ui/views/widget/root_view.cc

Index: ui/views/widget/root_view.cc
diff --git a/ui/views/widget/root_view.cc b/ui/views/widget/root_view.cc
index 5e703b93faa104d643840b7a211e0c8ee36eaa8b..a1f0813aa3f58a13aa4e14b858836e0b73928a4b 100644
--- a/ui/views/widget/root_view.cc
+++ b/ui/views/widget/root_view.cc
@@ -261,10 +261,12 @@ void RootView::OnEventProcessingStarted(ui::Event* event) {
     return;
   }
 
-  // Do not process ui::ET_GESTURE_END events which do not correspond to the
-  // removal of the final touch point.
+  // Do not process ui::ET_GESTURE_END events if they do not correspond to the
+  // removal of the final touch point or if no gesture handler has already
+  // been set.
   if (gesture_event->type() == ui::ET_GESTURE_END &&
-      gesture_event->details().touch_points() > 1) {
+      (gesture_event->details().touch_points() > 1 ||
+       !gesture_handler_)) {
     event->SetHandled();
     return;
   }