WIP: Eliminate event.target() usage from TrayEventFilter

ash/shelf/overflow_bubble.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/shelf/overflow_bubble.h"
 
 #include "ash/shelf/overflow_bubble_view.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_view.h"
 #include "ash/shelf/shelf_widget.h"
@@ skipping 54 matching lines @@
 void OverflowBubble::ProcessPressedEvent(
     const gfx::Point& event_location_in_screen) {
   if (IsShowing() && !shelf_view_->IsShowingMenu() &&
       !bubble_->GetBoundsInScreen().Contains(event_location_in_screen) &&
       !anchor_->GetBoundsInScreen().Contains(event_location_in_screen)) {
     HideBubbleAndRefreshButton();
   }
 }
 
 void OverflowBubble::OnMousePressed(const ui::MouseEvent& event,
-                                    const gfx::Point& location_in_screen) {
+                                    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) {
+                                    const gfx::Point& location_in_screen,
+                                    views::Widget* target) {
   ProcessPressedEvent(location_in_screen);
 }
 
 void OverflowBubble::OnWidgetDestroying(views::Widget* widget) {
   DCHECK(widget == bubble_->GetWidget());
   bubble_ = NULL;
   anchor_ = NULL;
   shelf_view_->shelf()->SchedulePaint();
   shelf_view_ = NULL;
 }
 
 }  // namespace ash