AX presentation role should be inherited to its required owned elements.

Source/modules/accessibility/AXObject.h

Index: Source/modules/accessibility/AXObject.h
diff --git a/Source/modules/accessibility/AXObject.h b/Source/modules/accessibility/AXObject.h
index d350173eb883905019d3cbc3586fe10733b7a393..f65ed2124381b1bf5533c82aad678f488f98d809 100644
--- a/Source/modules/accessibility/AXObject.h
+++ b/Source/modules/accessibility/AXObject.h
@@ -622,6 +622,8 @@ public:
     static const AtomicString& roleName(AccessibilityRole);
     static bool isInsideFocusableElementOrARIAWidget(const Node&);
 
+    bool hasInheritedPresentationRole() const { return m_cachedHasInheritedPresentationRole; }
+
 protected:
     AXID m_id;
     AccessibilityChildrenVector m_children;
@@ -631,6 +633,7 @@ protected:
     LayoutRect m_explicitElementRect;
 
     virtual bool computeAccessibilityIsIgnored() const { return true; }
+    virtual bool computeHasInheritedPresentationRole() const { return false; }
 
     // If this object itself scrolls, return its ScrollableArea.
     virtual ScrollableArea* getScrollableAreaIfScrollable() const { return 0; }
@@ -652,6 +655,7 @@ protected:
     mutable bool m_cachedIsInertOrAriaHidden : 1;
     mutable bool m_cachedIsDescendantOfBarrenParent : 1;
     mutable bool m_cachedIsDescendantOfDisabledNode : 1;
+    mutable bool m_cachedHasInheritedPresentationRole : 1;
     mutable const AXObject* m_cachedLiveRegionRoot;
 
     AXObjectCacheImpl* m_axObjectCache;