Merge "Don't WTF when assist structure is missing." into oc-dev

        public void send(int resultCode, Bundle resultData) throws RemoteException {

            final AssistStructure structure = resultData.getParcelable(KEY_STRUCTURE);

            if (structure == null) {

                Slog.wtf(TAG, "no assist structure");

                Slog.e(TAG, "No assist structure - app might have crashed providing it");

                return;

            }

            final Bundle receiverExtras = resultData.getBundle(KEY_RECEIVER_EXTRAS);

            if (receiverExtras == null) {

                Slog.wtf(TAG, "No " + KEY_RECEIVER_EXTRAS + " on receiver");

                Slog.e(TAG, "No receiver extras - app might have crashed providing it");

                return;

            }