Eliminate ash::internal namespace

ash/shelf/shelf_layout_manager.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/shelf/shelf_layout_manager.h"
 
 #include <algorithm>
 #include <cmath>
 #include <cstring>
 #include <string>
@@ skipping 32 matching lines @@
 #include "ui/compositor/layer_animation_observer.h"
 #include "ui/compositor/layer_animator.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/events/event.h"
 #include "ui/events/event_handler.h"
 #include "ui/gfx/screen.h"
 #include "ui/views/widget/widget.h"
 #include "ui/wm/public/activation_client.h"
 
 namespace ash {
-namespace internal {
-
 namespace {
 
 // Delay before showing the shelf. This is after the mouse stops moving.
 const int kAutoHideDelayMS = 200;
 
 // To avoid hiding the shelf when the mouse transitions from a message bubble
 // into the shelf, the hit test area is enlarged by this amount of pixels to
 // keep the shelf from hiding.
 const int kNotificationBubbleGapHeight = 6;
 
@@ skipping 1112 matching lines @@
     // Hide the status area widget (using auto hide animation).
     base::AutoReset<ShelfVisibilityState> state(&state_.visibility_state,
                                                 SHELF_HIDDEN);
     TargetBounds target_bounds;
     CalculateTargetBounds(state_, &target_bounds);
     UpdateBoundsAndOpacity(target_bounds, true, NULL);
     UpdateVisibilityState();
   }
 }
 
-}  // namespace internal
 }  // namespace ash