Merge "Remove changeId checking for VisualQueryDetectionService" into udc-dev

     * sandboxed process.

     * @param callback The callback to notify of detection events.

     * @return An instanece of {@link VisualQueryDetector}.

     * @throws UnsupportedOperationException if only single detector is supported. Multiple detector

     * is only available for apps targeting {@link Build.VERSION_CODES#TIRAMISU} and above.

     * @throws IllegalStateException when there is an existing {@link VisualQueryDetector}, or when

     * there is a non-trusted hotword detector running.

     *

            throw new IllegalStateException("Not available until onReady() is called");

        }

        synchronized (mLock) {

            if (!CompatChanges.isChangeEnabled(MULTIPLE_ACTIVE_HOTWORD_DETECTORS)) {

                throw new UnsupportedOperationException("VisualQueryDetector is only available if "

                        + "multiple detectors are allowed");

            } else {

            if (mActiveVisualQueryDetector != null) {

                throw new IllegalStateException(

                            "There is already an active VisualQueryDetector. "

                                    + "at the same time.");

                }

            }

            }

            VisualQueryDetector visualQueryDetector =

                    new VisualQueryDetector(mSystemService, executor, callback);