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 am: 6757de98ca am: a32f7beef6  -s ours am: 04e0e9c697 am: eb81b99c4a am: bb3f0c8d1c am: 9c8bf537e2 am: 76301f781d  -s ours am: d3e64e7e1e
am: bfff1b4942

Change-Id: I63a7ee8f933749776d3c8fe4036942a3988d1b7e