Add schema chrome-extension-resource:// for extension resources

chrome/common/chrome_paths.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 CHROME_COMMON_CHROME_PATHS_H__
 #define CHROME_COMMON_CHROME_PATHS_H__
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 70 matching lines @@
   FILE_O3D_PLUGIN,              // Full path to the O3D Pepper plugin file.
   FILE_GTALK_PLUGIN,            // Full path to the GTalk Pepper plugin file.
   FILE_LIBAVCODEC,              // Full path to libavcodec media decoding
                                 // library.
   FILE_LIBAVFORMAT,             // Full path to libavformat media parsing
                                 // library.
   FILE_LIBAVUTIL,               // Full path to libavutil media utility library.
   FILE_RESOURCES_PACK,          // Full path to the .pak file containing
                                 // binary data (e.g., html files and images
                                 // used by interal pages).
+  DIR_RESOURCES_EXTENSION,      // Full path to extension resources.
 #if defined(OS_CHROMEOS)
   FILE_CHROMEOS_API,            // Full path to chrome os api shared object.
 #endif
 
   // Valid only in development environment; TODO(darin): move these
   DIR_GEN_TEST_DATA,            // Directory where generated test data resides.
   DIR_TEST_DATA,                // Directory where unit test data resides.
   DIR_TEST_TOOLS,               // Directory where unit test tools reside.
 
   PATH_END
 };
 
 // Call once to register the provider for the path keys defined above.
 void RegisterPathProvider();
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_CHROME_PATHS_H__