Current work-in-progress crbug.com/567021

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

+// 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.
+
+#ifndef CSSGlobalRuleSet_h
+#define CSSGlobalRuleSet_h
+
+#include "core/css/RuleFeature.h"
+
+namespace blink {
+
+class Document;
+class RuleSet;
+class StyleEngine;
+
+class CSSGlobalRuleSet {
+    DISALLOW_NEW();
+    WTF_MAKE_NONCOPYABLE(CSSGlobalRuleSet);
+public:
+    CSSGlobalRuleSet() { }
+
+    void initWatchedSelectorsRuleSet(Document&);
+    void update(Document&);
+
+    DECLARE_TRACE();
+
+    RuleFeatureSet m_features;
+    Member<RuleSet> m_siblingRuleSet;
+    Member<RuleSet> m_uncommonAttributeRuleSet;
+    Member<RuleSet> m_watchedSelectorsRuleSet;
+};
+
+} // namespace blink
+
+#endif // CSSGlobalRuleSet_h