Eliminate ash::internal namespace

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"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "ui/aura/client/screen_position_client.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/events/event.h"
 #include "ui/gfx/screen.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
-namespace internal {
 
 OverflowBubble::OverflowBubble()
     : bubble_(NULL),
       anchor_(NULL),
       shelf_view_(NULL) {
 }
 
 OverflowBubble::~OverflowBubble() {
   Hide();
 }
@@ skipping 61 matching lines @@
 
 void OverflowBubble::OnWidgetDestroying(views::Widget* widget) {
   DCHECK(widget == bubble_->GetWidget());
   bubble_ = NULL;
   anchor_ = NULL;
   shelf_view_ = NULL;
   ShelfLayoutManager::ForShelf(
       widget->GetNativeView())->shelf_widget()->shelf()->SchedulePaint();
 }
 
-}  // namespace internal
 }  // namespace ash