CSSMediaRule and CSSSupportsRule inherit from CSSConditionRule

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

Index: third_party/WebKit/Source/core/css/CSSConditionRule.h
diff --git a/third_party/WebKit/Source/core/css/CSSConditionRule.h b/third_party/WebKit/Source/core/css/CSSConditionRule.h
new file mode 100644
index 0000000000000000000000000000000000000000..689e4dbce427cc52f7a27babbc12226c8ae8fc77
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/CSSConditionRule.h
@@ -0,0 +1,26 @@
+// 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 CSSConditionRule_h
+#define CSSConditionRule_h
+
+#include "core/css/CSSGroupingRule.h"
+
+namespace blink {
+
+class CSSConditionRule : public CSSGroupingRule {
+  DEFINE_WRAPPERTYPEINFO();
+
+ public:
+  ~CSSConditionRule() override;
+
+  virtual String conditionText() const;
+
+ protected:
+  CSSConditionRule(StyleRuleCondition* conditionRule, CSSStyleSheet* parent);
+};
+
+}  // namespace blink
+
+#endif  // CSSConditionRule_h