2 files changed, 3 insertions, 7 deletions
diff --git a/chrome/renderer/extensions/experimental.app_custom_bindings.cc b/chrome/renderer/extensions/experimental.app_custom_bindings.cc
index 683f883..65f7a6d 100644
--- a/chrome/renderer/extensions/experimental.app_custom_bindings.cc
+++ b/chrome/renderer/extensions/experimental.app_custom_bindings.cc
@@ -30,9 +30,8 @@ static v8::Handle<v8::Value> GetIsolatedFileSystem(
   GURL context_url = UserScriptSlave::GetDataSourceURLForFrame(webframe);
   CHECK(context_url.SchemeIs(chrome::kExtensionScheme));
 
-  std::string name(fileapi::GetFileSystemName(context_url.GetOrigin(),
-      fileapi::kFileSystemTypeIsolated));
-  name.append(file_system_id);
+  std::string name(fileapi::GetIsolatedFileSystemName(context_url.GetOrigin(),
+                                                      file_system_id));
 
   std::string root(fileapi::GetFileSystemRootURI(context_url.GetOrigin(),
       fileapi::kFileSystemTypeIsolated).spec());
diff --git a/chrome/renderer/extensions/media_gallery_custom_bindings.cc b/chrome/renderer/extensions/media_gallery_custom_bindings.cc
index baedab9..2b8a6d3 100644
--- a/chrome/renderer/extensions/media_gallery_custom_bindings.cc
+++ b/chrome/renderer/extensions/media_gallery_custom_bindings.cc
@@ -57,10 +57,7 @@ v8::Handle<v8::Value> MediaGalleryCustomBindings::GetMediaFileSystemObject(
   const GURL origin = GURL(webframe->document().securityOrigin().toString());
   const GURL root_url =
       fileapi::GetFileSystemRootURI(origin, fileapi::kFileSystemTypeIsolated);
-  const std::string fsname_prefix =
-      fileapi::GetFileSystemName(origin, fileapi::kFileSystemTypeIsolated);
-  const std::string fsname =
-      base::StringPrintf("%s_%s", fsname_prefix.c_str(), fsid.c_str());
+  const std::string fsname = fileapi::GetIsolatedFileSystemName(origin, fsid);
   const std::string url = base::StringPrintf("%s%s/%s/",
                                              root_url.spec().c_str(),
                                              fsid.c_str(),