Correctly finds line boundaries in objects with rich text on Windows.

third_party/WebKit/Source/modules/accessibility/AXLayoutObject.h

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 171 matching lines @@
     void setValue(const String&) override;
 
     // Notifications that this object may have changed.
     void handleActiveDescendantChanged() override;
     void handleAriaExpandedChanged() override;
     void textChanged() override;
 
     // Text metrics. Most of these should be deprecated, needs major cleanup.
     int index(const VisiblePosition&) const override;
     VisiblePosition visiblePositionForIndex(int) const override;
-    void lineBreaks(Vector<int>&) const override;
+    void lineBreaks(Vector<int>&) const final;
 
 private:
     AXObject* treeAncestorDisallowingChild() const;
     bool isTabItemSelected() const;
     bool isValidSelectionBound(const AXObject*) const;
     AXObject* accessibilityImageMapHitTest(HTMLAreaElement*, const IntPoint&) const;
     LayoutObject* layoutParentObject() const;
     bool isSVGImage() const;
     void detachRemoteSVGRoot();
     AXSVGRoot* remoteSVGRootElement() const;
@@ skipping 12 matching lines @@
     AXRange textControlSelection() const;
     int indexForVisiblePosition(const VisiblePosition&) const;
     AXLayoutObject* getUnignoredObjectFromNode(Node&) const;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXLayoutObject, isAXLayoutObject());
 
 } // namespace blink
 
 #endif // AXLayoutObject_h