Move app/mac/ files to ui/gfx/mac/ directory.

ui/gfx/mac/nsimage_cache.h

Index: ui/gfx/mac/nsimage_cache.h
diff --git a/app/mac/nsimage_cache.h b/ui/gfx/mac/nsimage_cache.h
similarity index 81%
rename from app/mac/nsimage_cache.h
rename to ui/gfx/mac/nsimage_cache.h
index ed1de06bd4c261c247378608de0b76c16f7f839b..45db9217de7a9ac6439336ea2ef99e27d25a1d75 100644
--- a/app/mac/nsimage_cache.h
+++ b/ui/gfx/mac/nsimage_cache.h
@@ -1,9 +1,9 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
-#ifndef APP_MAC_NSIMAGE_CACHE_H_
-#define APP_MAC_NSIMAGE_CACHE_H_
+#ifndef UI_GFX_MAC_NSIMAGE_CACHE_H_
+#define UI_GFX_MAC_NSIMAGE_CACHE_H_
 #pragma once
 
 #ifdef __OBJC__
@@ -32,4 +32,4 @@ void ClearCachedImages(void);
 }  // namespace mac
 }  // namespace app
 
-#endif  // APP_MAC_NSIMAGE_CACHE_H_
+#endif  // UI_GFX_MAC_NSIMAGE_CACHE_H_