Eliminate ash::internal namespace

ash/system/chromeos/tray_display_unittest.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/tray_display.h"
 
 #include "ash/display/display_manager.h"
 #include "ash/root_window_controller.h"
 #include "ash/screen_util.h"
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/test/test_system_tray_delegate.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "grit/ash_strings.h"
 #include "ui/accessibility/ax_view_state.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/display.h"
 #include "ui/message_center/message_center.h"
 #include "ui/message_center/notification.h"
 #include "ui/message_center/notification_list.h"
 #include "ui/views/controls/label.h"
 
 namespace ash {
-namespace internal {
 
 base::string16 GetTooltipText(const base::string16& headline,
                               const base::string16& name1,
                               const std::string& data1,
                               const base::string16& name2,
                               const std::string& data2) {
   std::vector<base::string16> lines;
   lines.push_back(headline);
   if (data1.empty()) {
     lines.push_back(name1);
@@ skipping 529 matching lines @@
   UpdateDisplay("400x400,200x200/r");
   EXPECT_EQ(
       l10n_util::GetStringFUTF16(
           IDS_ASH_STATUS_TRAY_DISPLAY_ROTATED,
           GetSecondDisplayName(),
           l10n_util::GetStringUTF16(
               IDS_ASH_STATUS_TRAY_DISPLAY_ORIENTATION_90)),
       GetDisplayNotificationText());
 }
 
-}  // namespace internal
 }  // namespace ash