commit c1d4aef578dafd4ed130e664ea0fe025e25f5631
author Tyler Gunn <tgunn@google.com> Fri Apr 24 16:19:06 2015 -0700
committer Tyler Gunn <tgunn@google.com> Fri Apr 24 16:19:06 2015 -0700
tree e712b4bc611a69bc614b2b266a98b8a3b0d1d792
parent 0af2982cc8235971113429941525de96b12bc9b8

Upgrade / downgrade requests

- Remove unnecessary "change to voice" button.
- Remove "modify call option" dialog that showed up in the past when
pressing the "upgrade to video button".
- Cleaned up some unnecessary Toasts for call session events, data
usage, and video quality
- Implemented the camera on/off functionality.
- Change preview to show the user's profile photo when their camera is
turned off, as well as a "camera off" icon.

Bug: 20257400
Change-Id: I6b7bb3d2394467f1345a798557130b2a674337c4