Eliminate ash::internal namespace

ash/system/chromeos/network/network_detailed_view.h

 // 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.
 
 #ifndef ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_DETAILED_VIEW_H
 #define ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_DETAILED_VIEW_H
 
 #include "ash/system/tray/tray_details_view.h"
 #include "chromeos/network/network_state_handler.h"
 
 namespace ash {
-namespace internal {
-
 namespace tray {
 
 // Abstract base class for all NetworkDetailedView derived subclasses,
 // which includes NetworkWifiDetailedView and NetworkStateListDetailedView.
 class NetworkDetailedView : public TrayDetailsView {
  public:
   enum DetailedViewType {
     LIST_VIEW,
     STATE_LIST_VIEW,
     WIFI_VIEW,
@@ skipping 17 matching lines @@
 
   // Called when a network service property has changed.
   // (Called only from TrayNetworkStateObserver).
   virtual void NetworkServiceChanged(const chromeos::NetworkState* network) = 0;
 
  protected:
   virtual ~NetworkDetailedView() {}
 };
 
 }  // namespace tray
-
-}  // namespace internal
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_DETAILED_VIEW_H