Rename the aura_shell namespace to ash

ash/launcher/launcher_model_unittest.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/launcher/launcher_model.h"
 
 #include "ash/launcher/launcher_model_observer.h"
 #include "base/stringprintf.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-namespace aura_shell {
+namespace ash {
 
 namespace {
 
 // LauncherModelObserver implementation that tracks what message are invoked.
 class TestLauncherModelObserver : public LauncherModelObserver {
  public:
   TestLauncherModelObserver()
       : added_count_(0),
         removed_count_(0),
         images_changed_count_(0),
@@ skipping 90 matching lines @@
   EXPECT_EQ(reinterpret_cast<void*>(2), model.items()[0].user_data);
   EXPECT_EQ(reinterpret_cast<void*>(1), model.items()[1].user_data);
 
   // Move the first item to the second item.
   model.Move(0, 1);
   EXPECT_EQ("moved=1", observer.StateStringAndClear());
   EXPECT_EQ(reinterpret_cast<void*>(1), model.items()[0].user_data);
   EXPECT_EQ(reinterpret_cast<void*>(2), model.items()[1].user_data);
 }
 
-}  // namespace aura_shell
+}  // namespace ash