Move RefCountedMemory class to base namespace.

chrome/browser/ui/webui/ntp/favicon_webui_handler.h

Index: chrome/browser/ui/webui/ntp/favicon_webui_handler.h
===================================================================
--- chrome/browser/ui/webui/ntp/favicon_webui_handler.h	(revision 134496)
+++ chrome/browser/ui/webui/ntp/favicon_webui_handler.h	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -55,7 +55,7 @@
 
   // Raw PNG representation of the favicon to show when the favicon
   // database doesn't have a favicon for a webpage.
-  scoped_refptr<RefCountedMemory> default_favicon_;
+  scoped_refptr<base::RefCountedMemory> default_favicon_;
 
   // Manage retrieval of icons from apps.
   scoped_ptr<ExtensionIconColorManager> app_icon_color_manager_;