Frameworks: Fix brigthnessslider PW

overlay config_screenBrightnessDim is on jb4.2 completly
controlled over the Powermanager....no need any more for it
+ fixes weird jumping issues on some devices which added
 config_screenBrightnessDim value

cheers

Change-Id: Ia67115611489fca837070b27e8a85509e519cfda
framework:When turn off of SoftAp immediately call turning ON SoftAp

Due to sub system restart,There is state change of softAp tether state machine
in tethered state triggering turnoff SoftAp this should be
follwed by turnon softap.

Change-Id: I93051f17bcaae72ae0694f1f23557cc1d3bea280
It helps to catch the right exception.

Bug: 7238149
Change-Id: I7b60ec44d1d1d5ece8a871cb089f811b611f4a4a
Two REMOVE_PROVIDER messages caused by race condition.

Fix a bug in unstable ContentProvider.
IllegalStateException: ref counts can't go to zero here: stable=0 unstable=0
IllegalStateException: unstable count < 0: -1

There is a race between main thread and background database thread. Main thread
is responsible for handling the REMOVE_PROVIDER message. Database thread starts
insert or query request again and again. acquireProvider in db thread will often
snatch provider from the jaws of death, sometime it fails to remove REMOVE_PROVIDER
which is already fired out from MessageQueue. But completeRemoveProvider in main
thread gets suspended when trying to execute the critical section. If db thread
released the provider before main thread resumes the execution, then two
REMOVE_PROVIDER messages will be executed.

Change-Id: I8588aa1d1a8bc444dcd2adf6f8bc3f055cebbdc4
Signed-off-by: Guobin Zhang <guobin.zhang@intel.com>