Eliminate ash::internal namespace

ash/system/chromeos/network/tray_network.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/chromeos/network/tray_network.h"
 
 #include "ash/ash_switches.h"
 #include "ash/metrics/user_metrics_recorder.h"
 #include "ash/shell.h"
 #include "ash/system/chromeos/network/network_icon_animation.h"
@@ skipping 22 matching lines @@
 #include "ui/views/controls/link_listener.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/widget/widget.h"
 
 using chromeos::NetworkHandler;
 using chromeos::NetworkState;
 using chromeos::NetworkStateHandler;
 using chromeos::NetworkTypePattern;
 
 namespace ash {
-namespace internal {
-
 namespace tray {
 
 class NetworkTrayView : public TrayItemView,
                         public network_icon::AnimationObserver {
  public:
   explicit NetworkTrayView(TrayNetwork* network_tray)
       : TrayItemView(network_tray),
         network_tray_(network_tray) {
     SetLayoutManager(
         new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0, 0));
@@ skipping 312 matching lines @@
     else
       detailed_->ManagerChanged();
   }
 }
 
 void TrayNetwork::NetworkServiceChanged(const chromeos::NetworkState* network) {
   if (detailed_)
     detailed_->NetworkServiceChanged(network);
 }
 
-}  // namespace internal
 }  // namespace ash