RemoteBridgeFrameOwner: keep better track of the attached frame

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

 /*
  * Copyright (C) 2006, 2007, 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 29 matching lines @@
 
 class CORE_EXPORT HTMLFrameOwnerElement : public HTMLElement, public FrameOwner {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(HTMLFrameOwnerElement);
 public:
     ~HTMLFrameOwnerElement() override;
 
     Frame* contentFrame() const { return m_contentFrame; }
     DOMWindow* contentWindow() const;
     Document* contentDocument() const;
 
-    void setContentFrame(Frame&);
-    void clearContentFrame();
-
     void disconnectContentFrame();
 
     // Most subclasses use LayoutPart (either LayoutEmbeddedObject or LayoutIFrame)
     // except for HTMLObjectElement and HTMLEmbedElement which may return any
     // LayoutObject when using fallback content.
     LayoutPart* layoutPart() const;
 
     Document* getSVGDocument(ExceptionState&) const;
 
     virtual bool loadedNonEmptyDocument() const { return false; }
     virtual void didLoadNonEmptyDocument() { }
 
     void setWidget(PassRefPtrWillBeRawPtr<Widget>);
     PassRefPtrWillBeRawPtr<Widget> releaseWidget();
     Widget* ownedWidget() const;
 
     class UpdateSuspendScope {
         STACK_ALLOCATED();
     public:
         UpdateSuspendScope();
         ~UpdateSuspendScope();
 
     private:
         void performDeferredWidgetTreeOperations();
     };
 
     // FrameOwner overrides:
     bool isLocal() const override { return true; }
+    void setContentFrame(Frame&) override;
+    void clearContentFrame() override;
     void dispatchLoad() override;
     SandboxFlags getSandboxFlags() const override { return m_sandboxFlags; }
     void renderFallbackContent() override { }
     ScrollbarMode scrollingMode() const override { return ScrollbarAuto; }
     int marginWidth() const override { return -1; }
     int marginHeight() const override { return -1; }
 
     DECLARE_VIRTUAL_TRACE();
 
 protected:
@@ skipping 48 matching lines @@
     CORE_EXPORT static WillBeHeapHashCountedSet<RawPtrWillBeMember<Node>>& disabledSubtreeRoots();
 
     RawPtrWillBeMember<Node> m_root;
 };
 
 DEFINE_TYPE_CASTS(HTMLFrameOwnerElement, FrameOwner, owner, owner->isLocal(), owner.isLocal());
 
 } // namespace blink
 
 #endif // HTMLFrameOwnerElement_h