Backed out changesets 6d1c36585219 and bd403a727849 (bug 1016560) for mochitest-other failures.

CLOSED TREE

dom/filesystem/CreateFileTask.cpp

@@ -287,7 +287,7 @@ CreateFileTask::HandlerCallback()
   if (HasError()) {
     nsRefPtr<DOMError> domError = new DOMError(mFileSystem->GetWindow(),
       mErrorValue);
-    mPromise->MaybeRejectBrokenly(domError);
+    mPromise->MaybeReject(domError);
     mPromise = nullptr;
     return;
   }