Eliminate ash::internal namespace

ash/system/bluetooth/tray_bluetooth.cc

 // Copyright (c) 2012 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/bluetooth/tray_bluetooth.h"
 
 #include "ash/shell.h"
 #include "ash/system/tray/fixed_sized_scroll_view.h"
 #include "ash/system/tray/hover_highlight_view.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/system/tray/throbber_view.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_details_view.h"
 #include "ash/system/tray/tray_item_more.h"
 #include "ash/system/tray/tray_popup_header_button.h"
 #include "grit/ash_resources.h"
 #include "grit/ash_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image.h"
 #include "ui/views/controls/image_view.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/layout/box_layout.h"
 
 namespace ash {
-namespace internal {
-
 namespace tray {
-
 namespace {
 
 // Updates bluetooth device |device| in the |list|. If it is new, append to the
 // end of the |list|; otherwise, keep it at the same place, but update the data
 // with new device info provided by |device|.
 void UpdateBluetoothDeviceListHelper(BluetoothDeviceList* list,
                                      const BluetoothDeviceInfo& device) {
   for (BluetoothDeviceList::iterator it = list->begin(); it != list->end();
        ++it) {
     if ((*it).address == device.address) {
@@ skipping 416 matching lines @@
   else if (detailed_)
     detailed_->Update();
 }
 
 void TrayBluetooth::OnBluetoothDiscoveringChanged() {
   if (!detailed_)
     return;
   detailed_->Update();
 }
 
-}  // namespace internal
 }  // namespace ash