Merge "Avoid duplicated calling to isRestricted to improve performance"

        private final Object mLock;

        private final AudioAttributes mAttributes;

        private final IAppOpsService mAppOps;

        private final boolean mIsRestricted;

        // SoundPool messages

        //

            mAttributes = attr;

            IBinder b = ServiceManager.getService(Context.APP_OPS_SERVICE);

            mAppOps = IAppOpsService.Stub.asInterface(b);

            mIsRestricted = isRestricted();

        }

        public int load(String path, int priority)

        public final int play(int soundID, float leftVolume, float rightVolume,

                int priority, int loop, float rate) {

            if (isRestricted()) {

            if (mIsRestricted) {

                leftVolume = rightVolume = 0;

            }

            return _play(soundID, leftVolume, rightVolume, priority, loop, rate);

        public native final void stop(int streamID);

        public final void setVolume(int streamID, float leftVolume, float rightVolume) {

            if (isRestricted()) {

            if (mIsRestricted) {

                return;

            }

            _setVolume(streamID, leftVolume, rightVolume);