Skeleton for app_list on OSX, and refactoring for enable_app_list=1 on OS=="mac".

ui/app_list/views/pulsing_block_view.h

 // 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.
 
-#ifndef UI_APP_LIST_PULSING_BLOCK_VIEW_H_
-#define UI_APP_LIST_PULSING_BLOCK_VIEW_H_
+#ifndef UI_APP_LIST_VIEWS_PULSING_BLOCK_VIEW_H_
+#define UI_APP_LIST_VIEWS_PULSING_BLOCK_VIEW_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/timer.h"
 #include "ui/views/view.h"
 
 namespace gfx {
 class Size;
 }
 
@@ skipping 13 matching lines @@
   // views::View overrides:
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
 
   base::OneShotTimer<PulsingBlockView> start_delay_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(PulsingBlockView);
 };
 
 }  // namespace app_list
 
-#endif  // UI_APP_LIST_PULSING_BLOCK_VIEW_H_
+#endif  // UI_APP_LIST_VIEWS_PULSING_BLOCK_VIEW_H_