1 files changed, 5 insertions, 3 deletions
diff --git a/chromium/third_party/WebKit/Source/core/css/CSSSupportsRule.h b/chromium/third_party/WebKit/Source/core/css/CSSSupportsRule.h
index 4d15dd2523f..75f467553cd 100644
--- a/chromium/third_party/WebKit/Source/core/css/CSSSupportsRule.h
+++ b/chromium/third_party/WebKit/Source/core/css/CSSSupportsRule.h
@@ -36,11 +36,11 @@ namespace WebCore {
 class CSSRule;
 class StyleRuleSupports;
 
-class CSSSupportsRule : public CSSGroupingRule {
+class CSSSupportsRule FINAL : public CSSGroupingRule {
 public:
-    static PassRefPtr<CSSSupportsRule> create(StyleRuleSupports* rule, CSSStyleSheet* sheet)
+    static PassRefPtrWillBeRawPtr<CSSSupportsRule> create(StyleRuleSupports* rule, CSSStyleSheet* sheet)
     {
-        return adoptRef(new CSSSupportsRule(rule, sheet));
+        return adoptRefWillBeNoop(new CSSSupportsRule(rule, sheet));
     }
 
     virtual ~CSSSupportsRule() { }
@@ -50,6 +50,8 @@ public:
 
     String conditionText() const;
 
+    virtual void trace(Visitor* visitor) OVERRIDE { CSSGroupingRule::trace(visitor); }
+
 private:
     CSSSupportsRule(StyleRuleSupports*, CSSStyleSheet*);
 };