[LayoutNG] PODify NGLayoutInputNode and sub-classes.

third_party/WebKit/Source/core/layout/ng/ng_break_token.h

Index: third_party/WebKit/Source/core/layout/ng/ng_break_token.h
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_break_token.h b/third_party/WebKit/Source/core/layout/ng/ng_break_token.h
index 02ef0edbeba2f3d8fda4602bf2d7b9605384febd..10378bbf9c970900c37153717ebd9d494d8e9c2b 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_break_token.h
+++ b/third_party/WebKit/Source/core/layout/ng/ng_break_token.h
@@ -48,19 +48,19 @@ class CORE_EXPORT NGBreakToken : public RefCounted<NGBreakToken> {
 
   // Returns the node associated with this break token. A break token cannot be
   // used with any other node.
-  NGLayoutInputNode* InputNode() const { return node_; }
+  NGLayoutInputNode InputNode() const { return node_; }
 
  protected:
   NGBreakToken(NGBreakTokenType type,
                NGBreakTokenStatus status,
-               NGLayoutInputNode* node)
+               NGLayoutInputNode node)
       : type_(type), status_(status), node_(node) {}
 
  private:
   unsigned type_ : 1;
   unsigned status_ : 1;
 
-  Persistent<NGLayoutInputNode> node_;
+  NGLayoutInputNode node_;
 };
 
 }  // namespace blink