Eliminate ash::internal namespace

ash/wm/workspace/workspace_event_handler_unittest.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/wm/workspace/workspace_event_handler.h"
 
 #include "ash/screen_util.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/window_state.h"
@@ skipping 10 matching lines @@
 #include "ui/events/event_processor.h"
 #include "ui/gfx/screen.h"
 #include "ui/wm/core/window_util.h"
 #include "ui/wm/public/window_move_client.h"
 
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
 #endif
 
 namespace ash {
-namespace internal {
 
 class WorkspaceEventHandlerTest : public test::AshTestBase {
  public:
   WorkspaceEventHandlerTest() {}
   virtual ~WorkspaceEventHandlerTest() {}
 
  protected:
   aura::Window* CreateTestWindow(aura::WindowDelegate* delegate,
                                  const gfx::Rect& bounds) {
     aura::Window* window = new aura::Window(delegate);
@@ skipping 406 matching lines @@
   wd.set_window_component(HTCAPTION);
 
   ASSERT_TRUE(aura::client::GetWindowMoveClient(window->GetRootWindow()));
   base::MessageLoop::current()->DeleteSoon(FROM_HERE, window.get());
   aura::client::GetWindowMoveClient(window->GetRootWindow())
       ->RunMoveLoop(window.release(),
                     gfx::Vector2d(),
                     aura::client::WINDOW_MOVE_SOURCE_MOUSE);
 }
 
-}  // namespace internal
 }  // namespace ash