tree f24d5542c8532a4db1331b1c02c77d76ab6e3948
parent 8b4bffcac996b4083e720310a09d315ca1c4a000
author RoboErik <epastern@google.com> 1405470198 -0700
committer RoboErik <epastern@google.com> 1405537425 -0700

Change adjustVolumeBy to adjustVolume

This makes volume adjustments take a direction instead of a number of
steps and renames the API appropriately.

Change-Id: I6a31cbc42d889a38aa63446686a424cb2b8b2270