Merge "MediaSession2: Protect MediaSessionManager APIs with permission" into pi-dev

import android.os.ResultReceiver;

import android.support.annotation.GuardedBy;

import android.text.TextUtils;

import android.util.ArrayMap;

import android.util.Log;

import java.lang.ref.WeakReference;

            // Ask server whether the controller is trusted.

            // App cannot know this because apps cannot query enabled notification listener for

            // another package, but system server can do.

            mIsTrusted = manager.isTrusted(uid, packageName);

            mIsTrusted = manager.isTrusted(packageName, pid, uid);

        }

        @Override