Merge "Remove stale connections to DataLoaders." into tm-qpr-dev

binder::Status IncrementalService::DataLoaderStub::onStatusChanged(MountId mountId, int newStatus) {

    if (!isValid()) {

        if (newStatus == IDataLoaderStatusListener::DATA_LOADER_BOUND) {

            // Async "bound" came to already destroyed stub.

            // Unbind immediately to avoid invalid stub sitting around in DataLoaderManagerService.

            mService.mDataLoaderManager->unbindFromDataLoader(mountId);

            return binder::Status::ok();

        }

        return binder::Status::

                fromServiceSpecificError(-EINVAL, "onStatusChange came to invalid DataLoaderStub");

    }