Respect Audio Focus during skip, shuffle and new selection

Bug: 63140402

Test: 1. Start music
      2. Start bluetooth call
      3. Use next/prev/shuffle and song selection
      4. confirm playback is not started.

Change-Id: Icb6a408cdf2ca2c6e4fdfaaedcd19f456c86b6c3
1 file changed
tree: cf065e31f21d3f78bf6d4563c76821558bac3375
  1. proto/
  2. res/
  3. src/
  4. Android.mk
  5. AndroidManifest.xml