Eliminate ash::internal namespace

ash/system/chromeos/screen_security/screen_tray_item.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/system/chromeos/screen_security/screen_tray_item.h"
 
 #include "ash/system/tray/fixed_sized_image_view.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/message_center/message_center.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/layout/box_layout.h"
 
 namespace {
 const int kStopButtonRightPadding = 18;
 }  // namespace
 
 namespace ash {
-namespace internal {
-
 namespace tray {
 
 // ScreenTrayView implementations.
 ScreenTrayView::ScreenTrayView(ScreenTrayItem* screen_tray_item, int icon_id)
     : TrayItemView(screen_tray_item),
       screen_tray_item_(screen_tray_item) {
   CreateImageView();
   image_view()->SetImage(ui::ResourceBundle::GetSharedInstance()
       .GetImageNamed(icon_id).ToImageSkia());
 
@@ skipping 172 matching lines @@
   // Center the item dependent on the orientation of the shelf.
   views::BoxLayout::Orientation layout =
       (alignment == ash::SHELF_ALIGNMENT_BOTTOM ||
        alignment == ash::SHELF_ALIGNMENT_TOP)
           ? views::BoxLayout::kHorizontal
           : views::BoxLayout::kVertical;
   tray_view_->SetLayoutManager(new views::BoxLayout(layout, 0, 0, 0));
   tray_view_->Layout();
 }
 
-}  // namespace internal
 }  // namespace ash