Add offset contributed to sticky position box rect by location containers

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
@@ skipping 1208 matching lines @@
                                 const LayoutBoxModelObject* ancestor,
                                 MapCoordinatesFlags = 0) const;
   FloatPoint localToAncestorPoint(const FloatPoint&,
                                   const LayoutBoxModelObject* ancestor,
                                   MapCoordinatesFlags = 0) const;
   void localToAncestorRects(Vector<LayoutRect>&,
                             const LayoutBoxModelObject* ancestor,
                             const LayoutPoint& preOffset,
                             const LayoutPoint& postOffset) const;
 
+  // Convert a local quad into the coordinate system of container, not
+  // include transforms. See localToAncestorQuad for details.
+  FloatQuad localToAncestorQuadWithoutTransforms(
+      const FloatQuad&,
+      const LayoutBoxModelObject* ancestor,
+      MapCoordinatesFlags = 0) const;
+
   // Return the transformation matrix to map points from local to the coordinate
   // system of a container, taking transforms into account.
   // Passing null for |ancestor| behaves the same as localToAncestorQuad.
   TransformationMatrix localToAncestorTransform(
       const LayoutBoxModelObject* ancestor,
       MapCoordinatesFlags = 0) const;
   TransformationMatrix localToAbsoluteTransform(
       MapCoordinatesFlags mode = 0) const {
     return localToAncestorTransform(nullptr, mode);
   }
@@ skipping 1461 matching lines @@
 CORE_EXPORT void showLineTree(const blink::LayoutObject*);
 CORE_EXPORT void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 CORE_EXPORT void showLayoutTree(const blink::LayoutObject* object1,
                                 const blink::LayoutObject* object2);
 
 #endif
 
 #endif  // LayoutObject_h