Eliminate ash::internal namespace

chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.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 "chrome/browser/ui/views/tabs/tab_drag_controller_interactive_uitest.h"
 
 #include "ash/wm/window_state.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
@@ skipping 2000 matching lines @@
 
 // Invoked from the nested message loop.
 void CancelDragTabToWindowInSeparateDisplayStep3(
     TabStrip* tab_strip,
     const BrowserList* browser_list) {
   ASSERT_FALSE(tab_strip->IsDragSessionActive());
   ASSERT_TRUE(TabDragController::IsActive());
   ASSERT_EQ(2u, browser_list->size());
 
   // Switching display mode should cancel the drag operation.
-  ash::internal::DisplayManager* display_manager =
+  ash::DisplayManager* display_manager =
       ash::Shell::GetInstance()->display_manager();
   display_manager->AddRemoveDisplay();
 }
 
 // Invoked from the nested message loop.
 void CancelDragTabToWindowInSeparateDisplayStep2(
     DetachToBrowserInSeparateDisplayAndCancelTabDragControllerTest* test,
     TabStrip* tab_strip,
     aura::Window* current_root,
     gfx::Point final_destination,
@@ skipping 299 matching lines @@
                         DetachToDockedTabDragControllerTest,
                         ::testing::Values("mouse", "mouse docked"));
 INSTANTIATE_TEST_CASE_P(TabDragging,
                         DetachToBrowserTabDragControllerTestTouch,
                         ::testing::Values("touch", "touch docked"));
 #else
 INSTANTIATE_TEST_CASE_P(TabDragging,
                         DetachToBrowserTabDragControllerTest,
                         ::testing::Values("mouse"));
 #endif