Support playing protected contents.

BZ: 7358

Add VideoDecoderPAVC class for playing protected contents.

Change-Id: Ie3acefdd5605578ac494841fc6fabf1b324fb9ca
Signed-off-by: Andy Qiu <junhai.qiu@intel.com>
Reviewed-on: http://android.intel.com:8080/20278
Reviewed-by: Sun, Hang L <hang.l.sun@intel.com>
Tested-by: Sun, Hang L <hang.l.sun@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>
7 files changed