Add more FS types and introduce type field into IsolatedContext

chrome/browser/media_gallery/media_file_system_registry.cc

Index: chrome/browser/media_gallery/media_file_system_registry.cc
diff --git a/chrome/browser/media_gallery/media_file_system_registry.cc b/chrome/browser/media_gallery/media_file_system_registry.cc
index 96bcf2aaa1812376165e9cd89dab991fa0f942e3..c8194df038d2ebf706d2a3fdb61d6cbca2382645 100644
--- a/chrome/browser/media_gallery/media_file_system_registry.cc
+++ b/chrome/browser/media_gallery/media_file_system_registry.cc
@@ -15,6 +15,7 @@
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
+#include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/isolated_context.h"
 
 namespace chrome {
@@ -146,8 +147,8 @@ std::string MediaFileSystemRegistry::RegisterPathAsFileSystem(
   // a fixed name (as we only register a single directory per file system).
   std::string register_name("_");
   const std::string fsid =
-      IsolatedContext::GetInstance()->RegisterFileSystemForFile(
-          path, &register_name);
+      IsolatedContext::GetInstance()->RegisterFileSystemForPath(
+          fileapi::kFileSystemTypeIsolated, path, &register_name);
   CHECK(!fsid.empty());
   return fsid;
 }