Stub for Privet file system

webkit/common/fileapi/file_system_types.h

Index: webkit/common/fileapi/file_system_types.h
diff --git a/webkit/common/fileapi/file_system_types.h b/webkit/common/fileapi/file_system_types.h
index 85417cca7d3aa13773c31226c91f29bbeefc1c07..48c77957ce5aa70e9d3b3085b4d11259f2f20c03 100644
--- a/webkit/common/fileapi/file_system_types.h
+++ b/webkit/common/fileapi/file_system_types.h
@@ -116,6 +116,9 @@ enum FileSystemType {
   // given identifier in each origin.
   kFileSystemTypePluginPrivate,
 
+  // A filesystem that is mounted via the Privet storage protocol.
+  kFileSystemTypeCloudDevice,
+
   // --------------------------------------------------------------------
   // Marks the end of internal type enum. (This is not the actual fs type)
   // New internal filesystem types must be added above this line.