Fix !ENABLE(ACCESSIBILITY) after r294878

https://bugs.webkit.org/show_bug.cgi?id=240976

Reviewed by Chris Fleizach.

Some methods with AXObjectCache were missing an !ENABLE(ACCESSIBILITY) build.

* Source/WebCore/accessibility/AXObjectCache.h:

Canonical link: https://commits.webkit.org/251019@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@294896 268f45cc-cd09-0410-ab3c-d52691b4dbfc

Source/WebCore/accessibility/AXObjectCache.h

@@ -638,6 +638,7 @@ inline void AXObjectCache::handleScrollbarUpdate(ScrollView*) { }
 inline void AXObjectCache::handleScrolledToAnchor(const Node*) { }
 inline void AXObjectCache::liveRegionChangedNotificationPostTimerFired() { }
 inline void AXObjectCache::notificationPostTimerFired() { }
+inline Vector<RefPtr<AXCoreObject>> AXObjectCache::objectsForIDs(const Vector<AXID>&) const { return { }; }
 inline void AXObjectCache::passwordNotificationPostTimerFired() { }
 inline void AXObjectCache::performDeferredCacheUpdate() { }
 inline void AXObjectCache::postLiveRegionChangeNotification(AccessibilityObject*) { }
@@ -655,6 +656,7 @@ inline void AXObjectCache::textChanged(Node*) { }
 inline void AXObjectCache::updateCacheAfterNodeIsAttached(Node*) { }
 inline void AXObjectCache::updateLoadingProgress(double) { }
 inline SimpleRange AXObjectCache::rangeForNodeContents(Node& node) { return makeRangeSelectingNodeContents(node); }
+inline std::optional<Vector<AXID>> AXObjectCache::relatedObjectsFor(const AXCoreObject&, AXRelationType) { return std::nullopt; }
 inline void AXObjectCache::remove(AXID) { }
 inline void AXObjectCache::remove(RenderObject*) { }
 inline void AXObjectCache::remove(Node&) { }