CSS: SelectorFilter is non-copyable

third_party/WebKit/Source/core/css/CSSStyleSheet.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 29 matching lines @@
 class SecurityOrigin;
 class StyleSheetContents;
 
 enum StyleSheetUpdateType {
     PartialRuleUpdate,
     EntireStyleSheetUpdate
 };
 
 class CORE_EXPORT CSSStyleSheet final : public StyleSheet {
     DEFINE_WRAPPERTYPEINFO();
+    WTF_MAKE_NONCOPYABLE(CSSStyleSheet);
 public:
     static CSSStyleSheet* create(StyleSheetContents*, CSSImportRule* ownerRule = 0);
     static CSSStyleSheet* create(StyleSheetContents*, Node* ownerNode);
     static CSSStyleSheet* createInline(Node*, const KURL&, const TextPosition& startPosition = TextPosition::minimumPosition(), const String& encoding = String());
     static CSSStyleSheet* createInline(StyleSheetContents*, Node* ownerNode, const TextPosition& startPosition = TextPosition::minimumPosition());
 
     ~CSSStyleSheet() override;
 
     CSSStyleSheet* parentStyleSheet() const override;
     Node* ownerNode() const override { return m_ownerNode; }
@@ skipping 109 matching lines @@
 {
     if (m_styleSheet)
         m_styleSheet->didMutateRules();
 }
 
 DEFINE_TYPE_CASTS(CSSStyleSheet, StyleSheet, sheet, sheet->isCSSStyleSheet(), sheet.isCSSStyleSheet());
 
 } // namespace blink
 
 #endif