Eliminate ash::internal namespace

ash/system/chromeos/session/logout_button_tray.cc

 // Copyright 2014 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/session/logout_button_tray.h"
 
 #include "ash/shelf/shelf_types.h"
 #include "ash/shell.h"
 #include "ash/system/chromeos/session/logout_confirmation_controller.h"
 #include "ash/system/status_area_widget.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_notifier.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_utils.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "grit/ash_resources.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/events/event.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/views/bubble/tray_bubble_view.h"
 #include "ui/views/controls/button/label_button.h"
 #include "ui/views/controls/button/label_button_border.h"
 #include "ui/views/painter.h"
 
 namespace ash {
-namespace internal {
-
 namespace {
 
 const int kLogoutButtonHorizontalExtraPadding = 7;
 
 const int kLogoutButtonNormalImages[] = {
   IDR_AURA_UBER_TRAY_LOGOUT_BUTTON_NORMAL_TOP_LEFT,
   IDR_AURA_UBER_TRAY_LOGOUT_BUTTON_NORMAL_TOP,
   IDR_AURA_UBER_TRAY_LOGOUT_BUTTON_NORMAL_TOP_RIGHT,
   IDR_AURA_UBER_TRAY_LOGOUT_BUTTON_NORMAL_LEFT,
   IDR_AURA_UBER_TRAY_LOGOUT_BUTTON_NORMAL_CENTER,
@@ skipping 117 matching lines @@
   button_->SetAccessibleName(title);
   UpdateVisibility();
 }
 
 void LogoutButtonTray::UpdateVisibility() {
   SetVisible(show_logout_button_in_tray_ &&
              login_status_ != user::LOGGED_IN_NONE &&
              login_status_ != user::LOGGED_IN_LOCKED);
 }
 
-}  // namespace internal
 }  // namespace ash