[LayoutNG] Initial pass of removing the state machine from ng_block_layout_algorithm.

third_party/WebKit/Source/core/layout/ng/ng_block_layout_algorithm.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 NGBlockLayoutAlgorithm_h
 #define NGBlockLayoutAlgorithm_h
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/ng_block_node.h"
 #include "core/layout/ng/ng_layout_algorithm.h"
@@ skipping 128 matching lines @@
     DCHECK(current_child_);
     return *current_child_->Style();
   }
 
   const NGConstraintSpace& ConstraintSpace() const {
     return *constraint_space_;
   }
 
   const ComputedStyle& Style() const { return *style_; }
 
-  enum LayoutState {
-    kStateInit,
-    kStatePrepareForChildLayout,
-    kStateChildLayout,
-    kStateOutOfFlowLayout,
-    kStateFinalize
-  };
-  LayoutState layout_state_;
-
   RefPtr<const ComputedStyle> style_;
 
   Member<NGBlockNode> first_child_;
   Member<NGConstraintSpace> constraint_space_;
 
   // The break token from which we are currently resuming layout.
   Member<NGBreakToken> break_token_;
 
   Member<NGFragmentBuilder> builder_;
   Member<NGConstraintSpaceBuilder> space_builder_;
@@ skipping 16 matching lines @@
   // MarginStrut for the previous child.
   NGMarginStrut prev_child_margin_strut_;
   // Whether the block-start was set for the currently built
   // fragment's margin strut.
   bool is_fragment_margin_strut_block_start_updated_ : 1;
 };
 
 }  // namespace blink
 
 #endif  // NGBlockLayoutAlgorithm_h