Merge "DO NOT MERGE: MPEG4Extractor: ensure returned status is checked." into lmp-dev am: 61df326a5e  -s ours am: 3092ed372c am: 74952e9616  -s ours am: 162672a9f6
am: 9215fa05fe

Change-Id: Ia3dc7340a54e5dc27ce7bf6781052d7cb506d966