tree 0834e7b31bbaf8b298e8a7ec409ea044ac919cb8
parent da86840b7be6c0fdc3d96a6b51ca7c3e50c6dc1e
parent 1d242fdfffdb88e3dc471a043772ab70e4fadb26
author Wei Jia <wjia@google.com> 1507676826 +0000
committer android-build-merger <android-build-merger@google.com> 1507676826 +0000

MediaExtractor: ensure users to check returned value by getTrack. am: 46e359cbc0 am: 1fad937a9c am: 7b66ddb747 am: 6c15ae2aa9  -s ours am: 41392611b5 am: 0b6424a441 am: b9e0bdb6e8
am: 1d242fdfff

Change-Id: Ifac6eee45c655b843f782ce732643f44dd0dd986