Update javadoc of BackupObserver

Update javadoc description of IBackupObserver.We report failure to
backupFinished only if transport failure.

Bug: 79235996

Test: none
Change-Id: I1286b5fdda5e1448b9daff93508a01d63e1b12ea

parent b085838e

core/java/android/app/backup/IBackupObserver.aidl

+1 −1

Original line number	Diff line number	Diff line
		@@ -51,7 +51,7 @@ oneway interface IBackupObserver {
		* even if no individual package backup operations were attempted.
		*
		* @param status Zero on success; a nonzero error code if the backup operation
		* as a whole failed.
		* as a whole failed with a transport error.
		*/
		void backupFinished(int status);
		}