libyuv r1000 roll for DEPS update to new chromium moving location of gold linker on linux.
BUG=libyuv:323
TESTED=try bots
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/12049006

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5947 4adac7df-926f-26a2-2b94-8c16560cd09d
common_audio: VADFree() now returns void

* Files in audio_coding are not affected since they never use the return value.
* voice_detection in audio_processing does.
* Updated vad_unittest.cc

BUG=441
TESTED=trybots
R=andrew@webrtc.org, tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/12059005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5948 4adac7df-926f-26a2-2b94-8c16560cd09d