mash: Don't close system tray bubble for clicks in menus/notifications

ash/shelf/overflow_bubble.cc

Index: ash/shelf/overflow_bubble.cc
diff --git a/ash/shelf/overflow_bubble.cc b/ash/shelf/overflow_bubble.cc
index c87f77a083bd219a6ceb8c28fc286def91991379..056853c424132a10e4fe4caf7e6249915e10adbb 100644
--- a/ash/shelf/overflow_bubble.cc
+++ b/ash/shelf/overflow_bubble.cc
@@ -71,13 +71,13 @@ void OverflowBubble::ProcessPressedEvent(
   }
 }
 
-void OverflowBubble::OnMousePressed(const ui::MouseEvent& event,
-                                    const gfx::Point& location_in_screen) {
+void OverflowBubble::OnMousePressed(const gfx::Point& location_in_screen,
+                                    views::Widget* target) {
   ProcessPressedEvent(location_in_screen);
 }
 
-void OverflowBubble::OnTouchPressed(const ui::TouchEvent& event,
-                                    const gfx::Point& location_in_screen) {
+void OverflowBubble::OnTouchPressed(const gfx::Point& location_in_screen,
+                                    views::Widget* target) {
   ProcessPressedEvent(location_in_screen);
 }