Add a test for audio quality after device suspend/resume.

BUG=chromium:564861
TEST=ran locally

Change-Id: I3f2ed30ba01b44bef4d932ce7beffe7dcd262e5c
Reviewed-on: https://chromium-review.googlesource.com/316505
Commit-Ready: Rohit Makasana <rohitbm@chromium.org>
Tested-by: Rohit Makasana <rohitbm@chromium.org>
Reviewed-by: Rohit Makasana <rohitbm@chromium.org>
12 files changed