// If user cancels download, unpin the file so that we do not sync the file
// again.
base::PostTaskAndReplyWithResult(
- blocking_task_runner_,
+ blocking_task_runner_.get(),
FROM_HERE,
base::Bind(&FileCache::Unpin, base::Unretained(cache_), local_id),
base::Bind(&util::EmptyFileOperationCallback));