Eliminate ash::internal namespace

ash/system/chromeos/brightness/tray_brightness_unittest.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/brightness/tray_brightness.h"
 
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/system_tray_item.h"
 #include "ash/test/ash_test_base.h"
 #include "ui/views/view.h"
 
 namespace ash {
-
 namespace {
 
 user::LoginStatus GetUserLoginStatus() {
   return Shell::GetInstance()->system_tray_delegate()->GetUserLoginStatus();
 }
 
 }  // namespace
 
-namespace internal {
-
 class TrayBrightnessTest : public test::AshTestBase {
  public:
   TrayBrightnessTest() {}
   virtual ~TrayBrightnessTest() {}
 
  protected:
   views::View* CreateDefaultView() {
     TrayBrightness tray(NULL);
     return tray.CreateDefaultView(GetUserLoginStatus());
   }
@@ skipping 53 matching lines @@
 // Tests that the enabling of MaximizeMode has no affect on the visibility of a
 // previously created BrightnessView that belongs to a detailed view.
 TEST_F(TrayBrightnessTest, DetailedViewVisibilityChangesDuringMaximizeMode) {
   scoped_ptr<views::View> tray(CreateDetailedView());
   Shell::GetInstance()->EnableMaximizeModeWindowManager(true);
   EXPECT_TRUE(tray->visible());
   Shell::GetInstance()->EnableMaximizeModeWindowManager(false);
   EXPECT_TRUE(tray->visible());
 }
 
-}  // namespace internal
-
 }  // namespace ash