Support FileSystem API in extensions

webkit/fileapi/file_system_path_manager.cc

Index: webkit/fileapi/file_system_path_manager.cc
diff --git a/webkit/fileapi/file_system_path_manager.cc b/webkit/fileapi/file_system_path_manager.cc
index c974dba2a9f9d692e2b5df1ef90b2bfc2054239f..2bd1f9ed20e51f97f3c6ed65a8bed6b934b31de0 100644
--- a/webkit/fileapi/file_system_path_manager.cc
+++ b/webkit/fileapi/file_system_path_manager.cc
@@ -75,6 +75,8 @@ FilePath::StringType CreateUniqueDirectoryName(const GURL& origin_url) {
   return unique;
 }
 
+static const char kExtensionScheme[] = "chrome-extension";
+
 }  // anonymous namespace
 
 class FileSystemPathManager::GetFileSystemRootPathTask
@@ -320,6 +322,7 @@ bool FileSystemPathManager::IsAllowedScheme(const GURL& url) const {
   // Basically we only accept http or https. We allow file:// URLs
   // only if --allow-file-access-from-files flag is given.
   return url.SchemeIs("http") || url.SchemeIs("https") ||
+         url.SchemeIs(kExtensionScheme) ||
          (url.SchemeIsFile() && allow_file_access_from_files_);
 }