Fix all failed and canceled URLRequestStatuses without errors.

net/url_request/url_request_file_dir_job.cc

Index: net/url_request/url_request_file_dir_job.cc
diff --git a/net/url_request/url_request_file_dir_job.cc b/net/url_request/url_request_file_dir_job.cc
index ce6ef75cfb894194f33134d4bc1cc17a8f887e75..64597d569e78bc752fce398d983ac6685d635718 100644
--- a/net/url_request/url_request_file_dir_job.cc
+++ b/net/url_request/url_request_file_dir_job.cc
@@ -162,7 +162,7 @@ void URLRequestFileDirJob::CompleteRead() {
     } else {
       NOTREACHED();
       // TODO: Better error code.
-      NotifyDone(URLRequestStatus(URLRequestStatus::FAILED, 0));
+      NotifyDone(URLRequestStatus::FromError(ERR_FAILED));
     }
   }
 }