Remove OwnPtr::release() calls in core/ (part 2).

third_party/WebKit/Source/core/html/parser/HTMLToken.h

 /*
  * Copyright (C) 2013 Google, Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 238 matching lines @@
     void appendToSystemIdentifier(UChar character)
     {
         ASSERT(character);
         ASSERT(m_type == DOCTYPE);
         ASSERT(m_doctypeData->m_hasSystemIdentifier);
         m_doctypeData->m_systemIdentifier.append(character);
     }
 
     PassOwnPtr<DoctypeData> releaseDoctypeData()
     {
-        return m_doctypeData.release();
+        return std::move(m_doctypeData);
     }
 
     /* Start/End Tag Tokens */
 
     bool selfClosing() const
     {
         ASSERT(m_type == StartTag || m_type == EndTag);
         return m_selfClosing;
     }
 
@@ skipping 201 matching lines @@
     // A pointer into m_attributes used during lexing.
     Attribute* m_currentAttribute;
 
     // For DOCTYPE
     OwnPtr<DoctypeData> m_doctypeData;
 };
 
 } // namespace blink
 
 #endif