[Layout API] Start converting ScrollAnchor to new layout API

third_party/WebKit/Source/core/frame/FrameView.h

 /*
    Copyright (C) 1997 Martin Jones (mjones@kde.org)
              (C) 1998 Waldo Bastian (bastian@kde.org)
              (C) 1998, 1999 Torben Weis (weis@kde.org)
              (C) 1999 Lars Knoll (knoll@kde.org)
              (C) 1999 Antti Koivisto (koivisto@kde.org)
    Copyright (C) 2004, 2005, 2006, 2007, 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
@@ skipping 89 matching lines @@
     void setFrameRect(const IntRect&) override;
 
     LocalFrame& frame() const
     {
         ASSERT(m_frame);
         return *m_frame;
     }
 
     Page* page() const;
 
+    // TODO(pilgrim) replace all instances of layoutView() with layoutViewItem()
+    // https://crbug.com/499321
     LayoutView* layoutView() const;
+    LayoutViewItem layoutViewItem() const
+    {
+        return LayoutViewItem(this->layoutView());
+    }
 
     void setCanHaveScrollbars(bool);
 
     Scrollbar* createScrollbar(ScrollbarOrientation);
 
     void setContentsSize(const IntSize&);
 
     void layout();
     bool didFirstLayout() const;
     void scheduleRelayout();
@@ skipping 635 matching lines @@
     void setNeedsUpdateViewportIntersection();
     void updateViewportIntersectionsForSubtree(LifeCycleUpdateOption);
     void updateViewportIntersectionIfNeeded();
     void notifyRenderThrottlingObservers();
     void updateThrottlingStatus();
 
     // PaintInvalidationCapableScrollableArea
     LayoutBox& boxForScrollControlPaintInvalidation() const override;
     LayoutScrollbarPart* resizer() const override { return nullptr; }
 
-    LayoutViewItem layoutViewItem() const
-    {
-        return LayoutViewItem(this->layoutView());
-    }
-
     LayoutSize m_size;
 
     typedef HashSet<RefPtr<LayoutEmbeddedObject>> EmbeddedObjectSet;
     EmbeddedObjectSet m_partUpdateSet;
 
     // FIXME: These are just "children" of the FrameView and should be Member<Widget> instead.
     HashSet<RefPtr<LayoutPart>> m_parts;
 
     // The RefPtr cycle between LocalFrame and FrameView is broken
     // when a LocalFrame is detached by LocalFrame::detach().
@@ skipping 154 matching lines @@
     if (m_visuallyNonEmptyPixelCount > visualPixelThreshold)
         setIsVisuallyNonEmpty();
 }
 
 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFrameView());
 DEFINE_TYPE_CASTS(FrameView, ScrollableArea, scrollableArea, scrollableArea->isFrameView(), scrollableArea.isFrameView());
 
 } // namespace blink
 
 #endif // FrameView_h