Rename the aura_shell namespace to ash

ash/wm/image_grid.cc

 // Copyright (c) 2011 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/image_grid.h"
 
 #include <algorithm>
 
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/image/image.h"
 #include "ui/gfx/transform.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkXfermode.h"
 
 using std::max;
 using std::min;
 
-namespace aura_shell {
+namespace ash {
 namespace internal {
 
 gfx::Rect ImageGrid::TestAPI::GetTransformedLayerBounds(
     const ui::Layer& layer) {
   gfx::Rect bounds = layer.bounds();
   layer.transform().TransformRect(&bounds);
   return bounds;
 }
 
 ImageGrid::ImageGrid()
@@ skipping 207 matching lines @@
   layer_ptr->get()->SetBounds(gfx::Rect(0, 0, size.width(), size.height()));
 
   painter_ptr->reset(new ImagePainter(image));
   layer_ptr->get()->set_delegate(painter_ptr->get());
   layer_ptr->get()->SetFillsBoundsOpaquely(false);
   layer_ptr->get()->SetVisible(true);
   layer_->Add(layer_ptr->get());
 }
 
 }  // namespace internal
-}  // namespace aura_shell
+}  // namespace ash