am d5aaff54: Merge "DO NOT MERGE - Updated media playback transport controls (b/3116268)" into gingerbread

Merge commit 'd5aaff548d62c07fb5fb2d47e58161e77c401616' into gingerbread-plus-aosp

* commit 'd5aaff548d62c07fb5fb2d47e58161e77c401616':
  DO NOT MERGE - Updated media playback transport controls (b/3116268)