Correctly initialize rotation animation hint.

    boolean pendingVoiceInteractionStart;   // Waiting for activity-invoked voice session

    IVoiceInteractionSession voiceSession;  // Voice interaction session for this activity

    int mRotationAnimationHint;

    // A hint to override the window specified rotation animation, or -1

    // to use the window specified value. We use this so that

    // we can select the right animation in the cases of starting

    // windows, where the app hasn't had time to set a value

    // on the window.

    int mRotationAnimationHint = -1;

    private static String startingWindowStateToString(int state) {

        switch (state) {