Add OVERRIDE to skia/.

skia/ext/SkFontHost_fontconfig_direct.h

 /* libs/graphics/ports/SkFontHost_fontconfig_direct.h
 **
 ** Copyright 2009, Google Inc.
 **
 ** Licensed under the Apache License, Version 2.0 (the "License");
 ** you may not use this file except in compliance with the License.
 ** You may obtain a copy of the License at
 **
 **     http://www.apache.org/licenses/LICENSE-2.0
 **
 ** Unless required by applicable law or agreed to in writing, software
 ** distributed under the License is distributed on an "AS IS" BASIS,
 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ** See the License for the specific language governing permissions and
 ** limitations under the License.
 */
 
 #ifndef FontConfigDirect_DEFINED
 #define FontConfigDirect_DEFINED
 #pragma once
 
 #include <map>
 #include <string>
 
+#include "base/compiler_specific.h"
 #include "SkThread.h"
 #include "SkFontHost_fontconfig_impl.h"
 
 class SK_API FontConfigDirect : public FontConfigInterface {
  public:
   FontConfigDirect();
   virtual ~FontConfigDirect();
 
   // FontConfigInterface implementation. Thread safe.
   virtual bool Match(std::string* result_family, unsigned* result_filefaceid,
                      bool filefaceid_valid, unsigned filefaceid,
                      const std::string& family,
                      const void* characters, size_t characters_bytes,
-                     bool* is_bold, bool* is_italic);
-  virtual int Open(unsigned filefaceid);
+                     bool* is_bold, bool* is_italic) OVERRIDE;
+  virtual int Open(unsigned filefaceid) OVERRIDE;
 
  private:
   SkMutex mutex_;
   // fileid stored in two maps below are unique per font file.
   std::map<unsigned, std::string> fileid_to_filename_;
   std::map<std::string, unsigned> filename_to_fileid_;
   unsigned next_file_id_;
 };
 
 #endif  // FontConfigDirect_DEFINED