fileapi: Add modification time check for FileSystemFileStreamReader

webkit/fileapi/isolated_mount_point_provider.cc

Index: webkit/fileapi/isolated_mount_point_provider.cc
diff --git a/webkit/fileapi/isolated_mount_point_provider.cc b/webkit/fileapi/isolated_mount_point_provider.cc
index 6abe53b66564ffa553e151a74a2a804af1d8fd65..2554edcea3e13e82e95a55969b2bec86d2250a0f 100644
--- a/webkit/fileapi/isolated_mount_point_provider.cc
+++ b/webkit/fileapi/isolated_mount_point_provider.cc
@@ -144,10 +144,11 @@ webkit_blob::FileStreamReader*
 IsolatedMountPointProvider::CreateFileStreamReader(
     const FileSystemURL& url,
     int64 offset,
+    const base::Time& expected_modification_time,
     FileSystemContext* context) const {
   return new webkit_blob::LocalFileStreamReader(
       context->task_runners()->file_task_runner(),
-      url.path(), offset, base::Time());
+      url.path(), offset, expected_modification_time);
 }
 
 FileStreamWriter* IsolatedMountPointProvider::CreateFileStreamWriter(