Rename the aura_shell namespace to ash

ash/wm/workspace/workspace_manager.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/workspace/workspace_manager.h"
 
 #include <algorithm>
 
 #include "ash/wm/workspace/workspace.h"
 #include "ash/wm/workspace/workspace_observer.h"
@@ skipping 12 matching lines @@
 
 // The horizontal margein between workspaces in pixels.
 const int kWorkspaceHorizontalMargin = 50;
 
 // Minimum/maximum scale for overview mode.
 const float kMaxOverviewScale = 0.9f;
 const float kMinOverviewScale = 0.3f;
 
 }
 
-namespace aura_shell {
+namespace ash {
 namespace internal {
 
 ////////////////////////////////////////////////////////////////////////////////
 // WindowManager, public:
 
 WorkspaceManager::WorkspaceManager(aura::Window* contents_view)
     : contents_view_(contents_view),
       active_workspace_(NULL),
       workspace_size_(
           gfx::Screen::GetMonitorAreaNearestWindow(contents_view_).size()),
@@ skipping 222 matching lines @@
   if (active_workspace_) {
     ui::Transform transform;
     transform.SetTranslateX(-active_workspace_->bounds().x());
     ui::LayerAnimator::ScopedSettings settings(
         contents_view_->layer()->GetAnimator());
     contents_view_->SetTransform(transform);
   }
 }
 
 }  // namespace internal
-}  // namespace aura_shell
+}  // namespace ash