Eliminate ash::internal namespace

ash/wm/drag_window_controller.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/drag_window_controller.h"
 
 #include "ash/shell_window_ids.h"
 #include "ash/wm/window_util.h"
 #include "ui/aura/client/screen_position_client.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/layer_tree_owner.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
 #include "ui/wm/core/shadow_types.h"
 #include "ui/wm/core/window_util.h"
 
 namespace ash {
-namespace internal {
 
 DragWindowController::DragWindowController(aura::Window* window)
     : window_(window),
       drag_widget_(NULL) {
 }
 
 DragWindowController::~DragWindowController() {
   Hide();
 }
 
@@ skipping 80 matching lines @@
   layer_owner_->root()->set_delegate(window_->layer()->delegate());
   // Place the layer at (0, 0) of the DragWindowController's window.
   gfx::Rect layer_bounds = layer_owner_->root()->bounds();
   layer_bounds.set_origin(gfx::Point(0, 0));
   layer_owner_->root()->SetBounds(layer_bounds);
   layer_owner_->root()->SetVisible(false);
   // Detach it from the current container.
   layer_owner_->root()->parent()->Remove(layer_owner_->root());
 }
 
-}  // namespace internal
 }  // namespace ash