[selectors4] Use common ancestor strategy for :focus-within

third_party/WebKit/Source/core/html/HTMLFrameElementBase.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2004, 2006, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 35 matching lines @@
   InsertionNotificationRequest InsertedInto(ContainerNode*) override;
   void DidNotifySubtreeInsertionsToDocument() final;
   void AttachLayoutTree(const AttachContext& = AttachContext()) override;
 
   void SetScrollingMode(ScrollbarMode);
   void SetMarginWidth(int);
   void SetMarginHeight(int);
 
  private:
   bool SupportsFocus() const final;
-  void SetFocused(bool, WebFocusType) final;
+  void SetFocused(bool, WebFocusType, Node* common_ancestor = nullptr) final;
 
   bool IsURLAttribute(const Attribute&) const final;
   bool HasLegalLinkAttribute(const QualifiedName&) const final;
   bool IsHTMLContentAttribute(const Attribute&) const final;
 
   bool AreAuthorShadowsAllowed() const final { return false; }
 
   void SetLocation(const String&);
   void SetNameAndOpenURL();
   bool IsURLAllowed() const;
   void OpenURL(bool replace_current_item = true);
 
   ScrollbarMode scrolling_mode_;
   int margin_width_;
   int margin_height_;
 
   AtomicString url_;
   AtomicString frame_name_;
 };
 
 inline bool IsHTMLFrameElementBase(const HTMLElement& element) {
   return isHTMLFrameElement(element) || isHTMLIFrameElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLFrameElementBase);
 
 }  // namespace blink
 
 #endif  // HTMLFrameElementBase_h