Unpack extensions inside chrome's directory.

chrome/common/chrome_paths.h

 // Copyright (c) 2006-2010 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__
 
 #include "build/build_config.h"
 
 // This file declares path keys for the chrome module.  These can be used with
@@ skipping 14 matching lines @@
   DIR_SHARED_RESOURCES,         // Directory containing js and css files used
                                 // by DOMUI and component extensions.
   DIR_BOOKMARK_MANAGER,         // Directory containing the bookmark manager.
   DIR_INSPECTOR,                // Directory where web inspector is located.
   DIR_NET_INTERNALS,            // Directory where net internals is located.
   DIR_APP_DICTIONARIES,         // Directory where the global dictionaries are.
   DIR_USER_DOCUMENTS,           // Directory for a user's "My Documents".
   DIR_DEFAULT_DOWNLOADS_SAFE,   // Directory for a user's
                                 // "My Documents/Downloads".
   DIR_DEFAULT_DOWNLOADS,        // Directory for a user's downloads.
+  DIR_USER_DATA_TEMP,           // A temp directory within DIR_USER_DATA.  Use
+                                // this when a temporary file or directory will
+                                // be moved into the profile, to avoid issues
+                                // moving across volumes.  See crbug.com/13044 .
   FILE_RESOURCE_MODULE,         // Full path and filename of the module that
                                 // contains embedded resources (version,
                                 // strings, images, etc.).
   FILE_LOCAL_STATE,             // Path and filename to the file in which
                                 // machine/installation-specific state is saved.
   FILE_RECORDED_SCRIPT,         // Full path to the script.log file that
                                 // contains recorded browser events for
                                 // playback.
   FILE_GEARS_PLUGIN,            // Full path to the gears.dll plugin file.
   FILE_FLASH_PLUGIN,            // Full path to the internal Flash plugin file.
@@ skipping 14 matching lines @@
 
   PATH_END
 };
 
 // Call once to register the provider for the path keys defined above.
 void RegisterPathProvider();
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_CHROME_PATHS_H__