Make Paint.mNativePaint package protected to fix the build.
Make Paint.mNativePaint package protected to fix the build.

The Paint_Delegate changes from lmp-dev reference mNativePaint, which
has been made private in master. Change it to being package-protected
to fix the build.

Change-Id: I4bf30a530f0145cf7697cef6aa9a698fc9bab4ed

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base