Eliminate ash::internal namespace

ash/wm/resize_shadow.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/resize_shadow.h"
 
 #include "base/time/time.h"
 #include "grit/ash_resources.h"
 #include "ui/aura/window.h"
 #include "ui/base/hit_test.h"
@@ skipping 22 matching lines @@
       base::TimeDelta::FromMilliseconds(kShadowAnimationDurationMs));
   layer->SetOpacity(visible ? kShadowTargetOpacity : 0.f);
   // Sets the layer visibility after a delay, which will be identical to the
   // opacity animation duration.
   layer->SetVisible(visible);
 }
 
 }  // namespace
 
 namespace ash {
-namespace internal {
 
 ResizeShadow::ResizeShadow() : last_hit_test_(HTNOWHERE) {}
 
 ResizeShadow::~ResizeShadow() {}
 
 void ResizeShadow::Init(aura::Window* window) {
   // Set up our image grid and images.
   ResourceBundle& res = ResourceBundle::GetSharedInstance();
   image_grid_.reset(new ::wm::ImageGrid);
   image_grid_->SetImages(
@@ skipping 45 matching lines @@
 
 void ResizeShadow::Hide() {
   ShowForHitTest(HTNOWHERE);
 }
 
 void ResizeShadow::Layout(const gfx::Rect& content_bounds) {
   gfx::Rect local_bounds(content_bounds.size());
   image_grid_->SetContentBounds(local_bounds);
 }
 
-}  // namespace internal
 }  // namespace ash