Make document.activeElement work with OOPIF

third_party/WebKit/Source/core/page/FocusController.h

 /*
  * Copyright (C) 2006, 2007 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 21 matching lines @@
 #include "public/platform/WebFocusType.h"
 #include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 struct FocusCandidate;
 class Element;
 class Frame;
+class HTMLFrameOwnerElement;
 class InputDeviceCapabilities;
 class LocalFrame;
 class Node;
 class Page;
 
 class CORE_EXPORT FocusController final : public NoBaseWillBeGarbageCollectedFinalized<FocusController> {
     WTF_MAKE_NONCOPYABLE(FocusController); USING_FAST_MALLOC_WILL_BE_REMOVED(FocusController);
 public:
     static PassOwnPtrWillBeRawPtr<FocusController> create(Page*);
 
     void setFocusedFrame(PassRefPtrWillBeRawPtr<Frame>);
     void focusDocumentView(PassRefPtrWillBeRawPtr<Frame>);
     LocalFrame* focusedFrame() const;
     Frame* focusedOrMainFrame() const;
 
+    // Finds the focused HTMLFrameOwnerElement, if any, in the provided frame.
+    // An HTMLFrameOwnerElement is considered focused if the frame it owns, or
+    // one of its descendant frames, is currently focused.
+    HTMLFrameOwnerElement* focusedFrameOwnerElement(LocalFrame& currentFrame) const;
+
     bool setInitialFocus(WebFocusType);
     bool advanceFocus(WebFocusType type, InputDeviceCapabilities* sourceCapabilities = nullptr) { return advanceFocus(type, false, sourceCapabilities); }
     Element* findFocusableElement(WebFocusType, Node&);
 
     bool setFocusedElement(Element*, PassRefPtrWillBeRawPtr<Frame>, WebFocusType = WebFocusTypeNone, InputDeviceCapabilities* sourceCapabilities = nullptr);
 
     void setActive(bool);
     bool isActive() const { return m_isActive; }
 
     void setFocused(bool);
@@ skipping 14 matching lines @@
     RawPtrWillBeMember<Page> m_page;
     RefPtrWillBeMember<Frame> m_focusedFrame;
     bool m_isActive;
     bool m_isFocused;
     bool m_isChangingFocusedFrame;
 };
 
 } // namespace blink
 
 #endif // FocusController_h