[LayoutNG] Remove the state machine from ng_out_of_flow_layout_part.

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 @@
 
 // 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
     : public GarbageCollectedFinalized<NGOutOfFlowLayoutPart> {
  public:
   NGOutOfFlowLayoutPart(PassRefPtr<const ComputedStyle>, NGLogicalSize);
 
-  // If false, this fragment should be passed up the tree for layout by
-  // an ancestor.
-  bool StartLayout(NGBlockNode*, const NGStaticPosition&);
-  NGLayoutStatus Layout(NGFragment**, NGLogicalOffset*);
+  void Layout(NGBlockNode&, NGStaticPosition, NGFragment**, NGLogicalOffset*);
 
   DECLARE_TRACE();
 
  private:
-  bool ComputeInlineSizeEstimate();
-  bool ComputeBlockSizeEstimate();
-  bool ComputeNodeFragment();
+  NGFragment* GenerateFragment(NGBlockNode& node,
+                               const Optional<LayoutUnit>& block_estimate,
+                               const NGAbsolutePhysicalPosition node_position);
 
-  bool contains_fixed_;
-  bool contains_absolute_;
-
-  enum State {
-    kComputeInlineEstimate,
-    kPartialPosition,
-    kComputeBlockEstimate,
-    kFullPosition,
-    kGenerateFragment,
-    kDone
-  };
-  State state_;
-
-  NGStaticPosition static_position_;
-  NGLogicalOffset parent_offset_;
-  NGPhysicalOffset parent_physical_offset_;
+  NGLogicalOffset parent_border_offset_;
+  NGPhysicalOffset parent_border_physical_offset_;
   Member<NGConstraintSpace> parent_space_;
-  Member<NGBlockNode> node_;
-  Member<NGConstraintSpace> node_space_;
-  Member<NGFragment> node_fragment_;
-  NGAbsolutePhysicalPosition node_position_;
-  Optional<MinAndMaxContentSizes> inline_estimate_;
-  Optional<LayoutUnit> block_estimate_;
 };
 
 }  // namespace blink
 
 #endif