CSSMediaRule and CSSSupportsRule inherit from CSSConditionRule

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

Index: third_party/WebKit/Source/core/css/CSSSupportsRule.h
diff --git a/third_party/WebKit/Source/core/css/CSSSupportsRule.h b/third_party/WebKit/Source/core/css/CSSSupportsRule.h
index ad78da92a91ac5c8cb0c6b83c214f5135c29e996..68e62158ac04cc6ff76ece319b473634a8c6a4eb 100644
--- a/third_party/WebKit/Source/core/css/CSSSupportsRule.h
+++ b/third_party/WebKit/Source/core/css/CSSSupportsRule.h
@@ -29,13 +29,13 @@
 #ifndef CSSSupportsRule_h
 #define CSSSupportsRule_h
 
-#include "core/css/CSSGroupingRule.h"
+#include "core/css/CSSConditionRule.h"
 
 namespace blink {
 
 class StyleRuleSupports;
 
-class CSSSupportsRule final : public CSSGroupingRule {
+class CSSSupportsRule final : public CSSConditionRule {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
@@ -48,9 +48,7 @@ class CSSSupportsRule final : public CSSGroupingRule {
 
   String cssText() const override;
 
-  String conditionText() const;
-
-  DEFINE_INLINE_VIRTUAL_TRACE() { CSSGroupingRule::trace(visitor); }
+  DEFINE_INLINE_VIRTUAL_TRACE() { CSSConditionRule::trace(visitor); }

[meade_UTC10, 2016/10/17 02:58:44]

If this just calls the superclass, it can be omitted.

 
  private:
   CSSSupportsRule(StyleRuleSupports*, CSSStyleSheet*);