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

Change-Id: I0ef1aea5d384a742e4b9acc7c55b60ad1bba1079