Merge cherrypicks of ['googleplex-android-review.googlesource.com/25073114'] into udc-qpr1-release.

    // Check if the target app is in cached mode

    private boolean isUidCached(int uid) {

        if (mActivityManagerInternal == null) {

        // Only query procState and importance for Android apps, which have UIDs starting

        // from FIRST_APPLICATION_UID. .

        //

        // Other processes with UID < FIRST_APPLICATION_UID can also register to DMS for

        // display events. E.g. Android Studio executes a screen sharing process to provide

        // display mirroring functionality. That process inherits the UID of adb. Depending

        // on adb mode, it can be shell (2000) or root (0). Those processes are not Android

        // apps and not managed by AMS. Treat them as non-cached so never ignore or defer

        // display events to them.

        if (mActivityManagerInternal == null || uid < FIRST_APPLICATION_UID) {

            return false;

        }

        int procState = mActivityManagerInternal.getUidProcessState(uid);