Re-reland Propagate OnNativeWidgetMove to delegate/observers, etc.

ui/views/bubble/bubble_frame_view.cc

Index: ui/views/bubble/bubble_frame_view.cc
diff --git a/ui/views/bubble/bubble_frame_view.cc b/ui/views/bubble/bubble_frame_view.cc
index ab2ae249d2a0a1fa4a5bfa6662cabe77ac974476..c54308feffe8ea410720026cda3aa3de41ef5aea 100644
--- a/ui/views/bubble/bubble_frame_view.cc
+++ b/ui/views/bubble/bubble_frame_view.cc
@@ -117,9 +117,10 @@ void BubbleFrameView::MirrorArrowIfOffScreen(
         bubble_border_->GetBounds(anchor_rect, client_size);
     // Restore the original arrow if mirroring doesn't show more of the bubble.
     if (GetOffScreenLength(monitor_rect, mirror_bounds, vertical) >=
-        GetOffScreenLength(monitor_rect, window_bounds, vertical)) {
+        GetOffScreenLength(monitor_rect, window_bounds, vertical))
       bubble_border_->set_arrow_location(arrow);
-    }
+    else
+      SchedulePaint();
   }
 }