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

Change-Id: I82d00420fc16adcc7104344c7ffb10d2d9b661f7