Remove implicit conversions from scoped_refptr to T* in c/b/chromeos/drive

chrome/browser/chromeos/drive/sync_client.cc

Index: chrome/browser/chromeos/drive/sync_client.cc
diff --git a/chrome/browser/chromeos/drive/sync_client.cc b/chrome/browser/chromeos/drive/sync_client.cc
index 36f37833e00e769701ebe2e0a4944b976dab5cff..432ea35317f30641c4c466523329aa8c09675ff7 100644
--- a/chrome/browser/chromeos/drive/sync_client.cc
+++ b/chrome/browser/chromeos/drive/sync_client.cc
@@ -484,7 +484,7 @@ void SyncClient::OnFetchFileComplete(const std::string& local_id,
     // 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));