[LayoutNG] Allow block-flow layout to be fragmented using new approach.

third_party/WebKit/Source/core/layout/ng/ng_out_of_flow_layout_part.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 NGOutOfFlowLayoutPart_h
 #define NGOutOfFlowLayoutPart_h
 
 #include "core/CoreExport.h"
 
 #include "core/layout/ng/ng_absolute_utils.h"
@@ skipping 12 matching lines @@
 class NGLayoutResult;
 
 // Helper class for positioning of out-of-flow blocks.
 // It should be used together with NGFragmentBuilder.
 // See NGFragmentBuilder::AddOutOfFlowChildCandidate documentation
 // for example of using these classes together.
 class CORE_EXPORT NGOutOfFlowLayoutPart {
   STACK_ALLOCATED();
 
  public:
-  NGOutOfFlowLayoutPart(const ComputedStyle& container_style,
+  NGOutOfFlowLayoutPart(const NGConstraintSpace& contianer_space,
+                        const ComputedStyle& container_style,
                         NGFragmentBuilder* container_builder);
   void Run();
 
  private:
   RefPtr<NGLayoutResult> LayoutDescendant(NGBlockNode& descendant,
                                           NGStaticPosition static_position,
                                           NGLogicalOffset* offset);
 
   RefPtr<NGLayoutResult> GenerateFragment(
       NGBlockNode& node,
       const Optional<LayoutUnit>& block_estimate,
       const NGAbsolutePhysicalPosition node_position);
 
   const ComputedStyle& container_style_;
   NGFragmentBuilder* container_builder_;
 
   NGLogicalOffset container_border_offset_;
   NGPhysicalOffset container_border_physical_offset_;
   Member<NGConstraintSpace> container_space_;
 };
 
 }  // namespace blink
 
 #endif