When an audio track is disabled, still pass the data to webrtc for audio processing.
The remote side will not get the real audio because webrtc will replace the frames with silence.


BUG=299007

Review URL: https://codereview.chromium.org/24742007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226339 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226339
Add #!/usr/bin/env python to builddeps.py

BUG=292397
TBR=sergeygs@chromium.org

Review URL: https://codereview.chromium.org/25604004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226340 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226340