Merge "DO NOT MERGE: MPEG4Extractor: ensure returned status is checked." into mnc-dev am: 80059d44c4 am: 72840f2216 am: 9e9987c46d
am: 9583ca702a  -s ours

Change-Id: Id8e5cbdcc0a9212f519677cb291c71c8a0d3fba1