commit 77e58350baa664c832aca01d963a0ecc76e7585f
author Andrew Lee <anwlee@google.com> Thu Jul 17 15:52:19 2014 -0700
committer Andrew Lee <anwlee@google.com> Thu Jul 17 16:14:16 2014 -0700
tree 9e420474ad80f5a3756ad7ad16d89dfd151e9c40
parent 32de2bc7c323d647be0098eaadd0086150704681

Simplify call-button-presenter update UI code.

I consolidated a lot of the if/then branches into booleans. This
means that buttons will be updated more frequently, but I think
it has the positive effect of making it easier to read, and is
considerably more concise.

I'm considering moving this code into a helper to address updates
for audio calls (vs. video calls), and thought to clean this up
on its own before doing that.

Bug: 16014280
Change-Id: I5ef53ce654091f033936233b7368b54b45cc3542