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
Bluetooth: Fix RfComm socket cursor exceptions in STRICT MODE.

Perform ParcelFileDescriptor close after detach to avoid bluetooth
socket leaks in strict mode.

CRs-fixed: 572214

Change-Id: Ib0d7d08e17aa147573e9893af9b605fd42420500
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
base: Fix for wifi tethering crash

Pass network info along with CMD_UPSTREAM_CHANGED
Added a NULL check for Network info in CMD_UPSTREAM_CHANGED

CRs-fixed: 562910
Change-Id: I98bd37205255d9d4025cfb95b0688c68bce3c9bd
Show PIN on Peer device on receiving PIN display request.

P2P provision discovery would request the peer to display a PIN.
The PIN is displayed handling the request, the PIN need to be
entered on keypad of requested peer device to achieve the
connection.

Change-Id: I8b6487681d78eb10c558983a08dec1ac8a8eee65
CRs-fixed: 382608
P2P: Fix for GO inviting a p2p device.

A p2p device on an invitation request from the peer invokes
p2p_peer command to know if the peer is a p2p device / GO.
Due to the cached entries there would be a possibility of
not getting the updated information, ending up in the wrong
negotiation with the invited peer. Thus do not rely on
p2p_peer command, rather assume that the peer is a GO on an
invitation request, provided there is no persistent network
configured.

CRs-Fixed: 486437
Change-Id: Ifaeb6a8c5f9cddd7df96622056541e22aad74314
ActivityManager: Donot take launcher screenshot.

Currently ActivityManger takes screenshot for all activities
on an activity switch, for maintaining the screenshots in recent
app list. This can be skipped for launcher, as launcher is not
present in the recent app list.

Change-Id: I22f7cda2c63483ab50e0df4428151503892b7d9b
Keyguard: disable music transport control debug

Change-Id: Ia4361d0850334dc0944559c40409c9062cf02e47