ash: Explicitly teach various components about ShelfLayoutManager.

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/root_window_controller.h"
 #include "ash/shelf/overflow_bubble_view.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shelf/shelf_view.h"
@@ skipping 76 matching lines @@
 
 void OverflowBubble::OnTouchEvent(ui::TouchEvent* event) {
   if (event->type() == ui::ET_TOUCH_PRESSED)
     ProcessPressedEvent(event);
 }
 
 void OverflowBubble::OnWidgetDestroying(views::Widget* widget) {
   DCHECK(widget == bubble_->GetWidget());
   bubble_ = NULL;
   anchor_ = NULL;
+  shelf_view_->shelf_layout_manager()->shelf_widget()->shelf()->SchedulePaint();
   shelf_view_ = NULL;
-  ShelfLayoutManager::ForShelf(
-      widget->GetNativeView())->shelf_widget()->shelf()->SchedulePaint();
 }
 
 }  // namespace ash