Add code to enable Bluetooth if not enabled

Add code to enable Bluetooth if not enabled.
Add some checks for null points and change some bad variable names.
Change the default volume for MediaPlayer to 0.30 since 0.50 is too loud.

Test: None

Bug: 35708388
Change-Id: I424332d3f2faa8673c1a511cb48374061e3f3375
4 files changed
tree: 25afdd17b80fa6b0ae23d5ab334f1a9acec3c95c
  1. PMC/
  2. PREUPLOAD.cfg
  3. sl4n/