Last few steps of text alternative computation algorithm

Source/modules/accessibility/AXNodeObject.h

Index: Source/modules/accessibility/AXNodeObject.h
diff --git a/Source/modules/accessibility/AXNodeObject.h b/Source/modules/accessibility/AXNodeObject.h
index 1d43500650665d2aa7d9b46229874a4469a33736..046d571dc9b50e3c928a19735827c184dcee08a7 100644
--- a/Source/modules/accessibility/AXNodeObject.h
+++ b/Source/modules/accessibility/AXNodeObject.h
@@ -168,7 +168,7 @@ protected:
     String computedName() const override;
 
     // New AX name calculation.
-    String textAlternative(bool recursive, bool inAriaLabelledByTraversal, AXObjectSet& visited, AXNameFrom&, AXObjectVector& nameObjects, NameSources*) const override;
+    String textAlternative(bool recursive, bool inAriaLabelledByTraversal, AXObjectSet& visited, AXNameFrom&, AXObjectVector* nameObjects, NameSources*) const override;
 
     // Location and click point in frame-relative coordinates.
     LayoutRect elementRect() const override;
@@ -217,9 +217,9 @@ private:
     void deprecatedAriaLabelledbyText(WillBeHeapVector<OwnPtrWillBeMember<AccessibilityText>>&) const;
 
     String textFromDescendants(AXObjectSet& visited) const;
-    String textFromElements(bool inAriaLabelledByTraversal, AXObjectSet& visited, WillBeHeapVector<RawPtrWillBeMember<Element>>& elements, AXObjectVector& nameObjects) const;
-    String textFromAriaLabelledby(AXObjectSet& visited, AXObjectVector& nameObjects) const;
-    String nativeTextAlternative(AXObjectSet& visited, AXNameFrom&, AXObjectVector& nameObjects, NameSources*, bool* foundTextAlternative) const;
+    String textFromElements(bool inAriaLabelledByTraversal, AXObjectSet& visited, WillBeHeapVector<RawPtrWillBeMember<Element>>& elements, AXObjectVector* nameObjects) const;
+    String textFromAriaLabelledby(AXObjectSet& visited, AXObjectVector* nameObjects) const;
+    String nativeTextAlternative(AXObjectSet& visited, AXNameFrom&, AXObjectVector* nameObjects, NameSources*, bool* foundTextAlternative) const;
     float stepValueForRange() const;
     AXObject* findChildWithTagName(const HTMLQualifiedName&) const;
     bool isDescendantOfElementType(const HTMLQualifiedName& tagName) const;