[LayoutNG] PODify NGLayoutInputNode and sub-classes.

third_party/WebKit/Source/core/layout/ng/inline/ng_line_breaker.h

 // Copyright 2017 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 NGLineBreaker_h
 #define NGLineBreaker_h
 
 #include "core/CoreExport.h"
 #include "core/layout/ng/inline/ng_inline_item_result.h"
+#include "core/layout/ng/inline/ng_inline_node.h"
 #include "platform/heap/Handle.h"
 #include "platform/text/TextBreakIterator.h"
 #include "platform/wtf/Allocator.h"
 #include "platform/wtf/text/AtomicString.h"
 
 namespace blink {
 
 class NGInlineBreakToken;
 class NGInlineItem;
 class NGInlineNode;
 class NGInlineLayoutAlgorithm;
 
 // Represents a line breaker.
 //
 // This class measures each NGInlineItem and determines items to form a line,
 // so that NGInlineLayoutAlgorithm can build a line box from the output.
 class CORE_EXPORT NGLineBreaker {
  public:
-  NGLineBreaker(NGInlineNode*,
+  NGLineBreaker(NGInlineNode,
                 const NGConstraintSpace*,
                 NGInlineBreakToken* = nullptr);
   ~NGLineBreaker() {}
   STACK_ALLOCATED();
 
   // Compute the next line break point and produces NGInlineItemResults for
   // the line.
   // TODO(kojii): NGInlineLayoutAlgorithm is needed because floats require
   // not only constraint space but also container builder. Consider refactor
   // not to require algorithm.
@@ skipping 32 matching lines @@
 
   void HandleOverflow(NGInlineItemResults*);
   void Rewind(NGInlineItemResults*, unsigned new_end);
 
   void UpdateBreakIterator(const ComputedStyle&);
 
   void MoveToNextOf(const NGInlineItem&);
   void MoveToNextOf(const NGInlineItemResult&);
   void SkipCollapsibleWhitespaces();
 
-  Persistent<NGInlineNode> node_;
+  NGInlineNode node_;
   const NGConstraintSpace* constraint_space_;
   const AtomicString locale_;
   unsigned item_index_;
   unsigned offset_;
   LayoutUnit available_width_;
   LayoutUnit position_;
   LazyLineBreakIterator break_iterator_;
 
   unsigned auto_wrap_ : 1;
 };
 
 }  // namespace blink
 
 #endif  // NGLineBreaker_h