Revert of mash: Convert TrayBackgroundView to wm common types

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/common/system/tray/tray_background_view.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"
 #include "ash/shell.h"
+#include "ash/system/tray/tray_background_view.h"
 #include "ui/events/event.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 
 OverflowBubble::OverflowBubble()
     : bubble_(NULL),
       anchor_(NULL),
       shelf_view_(NULL) {
   Shell::GetInstance()->AddPointerWatcher(this);
@@ skipping 62 matching lines @@
 
 void OverflowBubble::OnWidgetDestroying(views::Widget* widget) {
   DCHECK(widget == bubble_->GetWidget());
   bubble_ = NULL;
   anchor_ = NULL;
   shelf_view_->shelf()->SchedulePaint();
   shelf_view_ = NULL;
 }
 
 }  // namespace ash