Eliminate ash::internal namespace

ash/wm/boot_splash_screen_chromeos.cc

 // Copyright 2013 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/boot_splash_screen_chromeos.h"
 
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/base/x/x11_util.h"
 #include "ui/compositor/layer.h"
 #include "ui/compositor/layer_type.h"
 #include "ui/compositor/scoped_layer_animation_settings.h"
 #include "ui/gfx/canvas.h"
 
 namespace ash {
-namespace internal {
 
 // ui::LayerDelegate that copies the aura host window's content to a ui::Layer.
 class BootSplashScreen::CopyHostContentLayerDelegate
     : public ui::LayerDelegate {
  public:
   explicit CopyHostContentLayerDelegate(aura::WindowTreeHost* host)
       : host_(host) {
   }
 
   virtual ~CopyHostContentLayerDelegate() {}
@@ skipping 37 matching lines @@
 BootSplashScreen::~BootSplashScreen() {
 }
 
 void BootSplashScreen::StartHideAnimation(base::TimeDelta duration) {
   ui::ScopedLayerAnimationSettings settings(layer_->GetAnimator());
   settings.SetTransitionDuration(duration);
   settings.SetPreemptionStrategy(ui::LayerAnimator::REPLACE_QUEUED_ANIMATIONS);
   layer_->SetOpacity(0.0f);
 }
 
-}  // namespace internal
 }  // namespace ash