[LayoutNG] Fix enum values to conform to kEnumName in style guide.

third_party/WebKit/Source/core/layout/ng/ng_layout_input_node.cc

 // 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.
 
 #include "core/layout/ng/ng_layout_input_node.h"
 
 #include "core/layout/ng/ng_block_layout_algorithm.h"
 #include "core/layout/ng/ng_block_node.h"
 #include "core/layout/ng/ng_constraint_space.h"
 #include "core/layout/ng/ng_inline_node.h"
 #include "core/layout/ng/ng_inline_layout_algorithm.h"
 #include "core/layout/ng/ng_layout_algorithm.h"
 #include "core/style/ComputedStyle.h"
 
 namespace blink {
 
 NGLayoutAlgorithm* NGLayoutInputNode::AlgorithmForInputNode(
     NGLayoutInputNode* input_node,
     const NGConstraintSpace* constraint_space) {
   // At least for now, this should never be called on LegacyInline
   // children. However, there will be other kinds of input_node so
   // it makes sense to do this here.
-  DCHECK(input_node->Type() == LegacyBlock);
+  DCHECK(input_node->Type() == kLegacyBlock);
   NGBlockNode* block = toNGBlockNode(input_node);
 
   if (block->HasInlineChildren())
     return new NGInlineLayoutAlgorithm(
         block->Style(), toNGInlineNode(block->FirstChild()),
         constraint_space->ChildSpace(block->Style()));
   return new NGBlockLayoutAlgorithm(
       block->Style(), toNGBlockNode(block->FirstChild()),
       constraint_space->ChildSpace(block->Style()));
 }
 }