Fragment that establishes new BFC knows it's BFC offset in parent space

third_party/WebKit/Source/core/layout/ng/ng_block_node.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NGBlockNode_h
 #define NGBlockNode_h
 
 #include "core/CoreExport.h"
 #include "core/layout/LayoutBox.h"
 #include "core/layout/ng/ng_layout_input_node.h"
@@ skipping 41 matching lines @@
 
   void SetNextSibling(NGBlockNode*);
   void SetFirstChild(NGLayoutInputNode*);
 
   void SetFragment(NGPhysicalBoxFragment* fragment) { fragment_ = fragment; }
   NGBreakToken* CurrentBreakToken() const;
   bool IsLayoutFinished() const {
     return fragment_ && !fragment_->BreakToken();
   }
 
-  // Used for debugging purposes only.
-  const LayoutBox* LegacyLayoutBox() const { return layout_box_; }
-
   DECLARE_VIRTUAL_TRACE();
 
   // Runs layout on layout_box_ and creates a fragment for the resulting
   // geometry.
   RefPtr<NGPhysicalBoxFragment> RunOldLayout(const NGConstraintSpace&);
 
   // Called if this is an out-of-flow block which needs to be
   // positioned with legacy layout.
   void UseOldOutOfFlowPositioning();
 
@@ skipping 22 matching lines @@
 
 DEFINE_TYPE_CASTS(NGBlockNode,
                   NGLayoutInputNode,
                   node,
                   node->Type() == NGLayoutInputNode::kLegacyBlock,
                   node.Type() == NGLayoutInputNode::kLegacyBlock);
 
 }  // namespace blink
 
 #endif  // NGBlockNode