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

Change-Id: Ibb5582e0c402221d6af88592ef261aeaafaf5f10