connectivity: allow inheritance to subclass

set modifier to protected in order to allow
subclass to use the same data and avoid redefinition.

Change-Id: I2dc688d3e433775cb073ec6faae3981807212cc9
frameworks/base: Fix race conditions on resume/suspend using power key

The wakelock PowerManagerService.Display sometimes cannot be released
after two quick power key pressings like a double click during phone
sleep (the target will resume then supposedly suspend shortly).

The second key event disturbs display power state on resume, as a
result display resources won't get released on suspend, which is fixed
in this change.

CRs-Fixed: 566059
Change-Id: I633fd377ab235f203ebfb649a74449a2385740c4
audio: Fix for volume level mismatch for AVRCP headset

-The volume level sent to AVRCP module from AudioService
 is incorrect.
-The volume level need to scale down for AVRCP module.
-Divide volume level by 10 to match AVRCP module volume
 levels.

Change-Id: Ieb8146797d0b552311b1a4782c45aea1be73e492
CRs-Fixed: 561649
video: Add support for extended media listener

Added changes to handle additional message types for
dash playback.

Change-Id: Id07828866de8cae44137f26c1e74417aaa45704f