Add OVERRIDE to webkit/.

webkit/appcache/mock_appcache_policy.h

 // 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 WEBKIT_APPCACHE_MOCK_APPCACHE_POLICY_H_
 #define WEBKIT_APPCACHE_MOCK_APPCACHE_POLICY_H_
 
+#include "base/compiler_specific.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/appcache/appcache_policy.h"
 
 namespace appcache {
 
 class MockAppCachePolicy : public AppCachePolicy {
  public:
   MockAppCachePolicy();
   virtual ~MockAppCachePolicy();
 
   virtual bool CanLoadAppCache(const GURL& manifest_url,
-                               const GURL& first_party);
+                               const GURL& first_party) OVERRIDE;
   virtual bool CanCreateAppCache(const GURL& manifest_url,
-                                 const GURL& first_party);
+                                 const GURL& first_party) OVERRIDE;
 
   bool can_load_return_value_;
   bool can_create_return_value_;
   GURL requested_manifest_url_;
 };
 
 }  // namespace appcache
 
 #endif  // WEBKIT_APPCACHE_MOCK_APPCACHE_POLICY_H_