Move AX local bounding box calculation into LayoutObject

third_party/WebKit/Source/core/layout/LayoutObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google 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 1014 matching lines @@
 
     // Build an array of quads in absolute coords for line boxes
     virtual void absoluteQuads(Vector<FloatQuad>&) const { }
 
     static FloatRect absoluteBoundingBoxRectForRange(const Range*);
 
     // The bounding box (see: absoluteBoundingBoxRect) including all descendant
     // bounding boxes.
     IntRect absoluteBoundingBoxRectIncludingDescendants() const;
 
+    // For accessibility, we want the bounding box rect of this element
+    // in local coordinates, which can then be converted to coordinates relative
+    // to any ancestor using, e.g., localToAncestorTransform.
+    virtual FloatRect localBoundingBoxRectForAccessibility() const = 0;
+
     // This function returns the minimal logical width this object can have
     // without overflowing. This means that all the opportunities for wrapping
     // have been taken.
     //
     // See INTRINSIC SIZES / PREFERRED LOGICAL WIDTHS above.
     //
     // CSS 2.1 calls this width the "preferred minimum width" (thus this name)
     // and "minimum content width" (for table).
     // However CSS 3 calls it the "min-content inline size".
     // https://drafts.csswg.org/css-sizing-3/#min-content-inline-size
@@ skipping 1093 matching lines @@
 void showTree(const blink::LayoutObject*);
 void showLineTree(const blink::LayoutObject*);
 void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 void showLayoutTree(const blink::LayoutObject* object1, const blink::LayoutObject* object2);
 
 #endif
 
 #endif // LayoutObject_h