Fix compile time error with Protected Apps

Change-Id: Ib53178b4ca3e9a32d523ad003816230d758925b4
Add the appropriate @hide flag so we can build!

Change-Id: Id45f682287741badb13e256f6029c52820a068bd
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_frameworks_base into android-4.4