[Contextual Search] Check for ARIA widget roles.

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 c197f4f44b0463ebb7ceb6532ced2eb689035521..45bfd39edaf478b8c3ff65c32919f90f80fd5dce 100644
--- a/Source/modules/accessibility/AXObject.h
+++ b/Source/modules/accessibility/AXObject.h
@@ -608,6 +608,7 @@ public:
     static AccessibilityRole ariaRoleToWebCoreRole(const String&);
     static IntRect boundingBoxForQuads(LayoutObject*, const Vector<FloatQuad>&);
     static const AtomicString& roleName(AccessibilityRole);
+    static bool isInsideFocusableElementOrARIAWidget(const Node&);
 
 protected:
     AXID m_id;
@@ -643,6 +644,10 @@ protected:
     // Updates the cached attribute values. This may be recursive, so to prevent deadlocks,
     // functions called here may only search up the tree (ancestors), not down.
     void updateCachedAttributeValuesIfNeeded() const;
+
+private:
+    static bool includesARIAWidgetRole(const String&);
+    static bool hasInteractiveARIAAttribute(const Element&);
 };
 
 #define DEFINE_AX_OBJECT_TYPE_CASTS(thisType, predicate) \