1 files changed, 9 insertions, 6 deletions
diff --git a/chromium/third_party/WebKit/Source/core/css/CSSViewportRule.h b/chromium/third_party/WebKit/Source/core/css/CSSViewportRule.h
index 2ef8c81511f..20a84b5c73a 100644
--- a/chromium/third_party/WebKit/Source/core/css/CSSViewportRule.h
+++ b/chromium/third_party/WebKit/Source/core/css/CSSViewportRule.h
@@ -32,6 +32,7 @@
 #define CSSViewportRule_h
 
 #include "core/css/CSSRule.h"
+#include "platform/heap/Handle.h"
 
 namespace WebCore {
 
@@ -39,13 +40,13 @@ class CSSStyleDeclaration;
 class StyleRuleViewport;
 class StyleRuleCSSStyleDeclaration;
 
-class CSSViewportRule: public CSSRule {
+class CSSViewportRule FINAL: public CSSRule {
 public:
-    static PassRefPtr<CSSViewportRule> create(StyleRuleViewport* viewportRule, CSSStyleSheet* sheet)
+    static PassRefPtrWillBeRawPtr<CSSViewportRule> create(StyleRuleViewport* viewportRule, CSSStyleSheet* sheet)
     {
-        return adoptRef(new CSSViewportRule(viewportRule, sheet));
+        return adoptRefWillBeNoop(new CSSViewportRule(viewportRule, sheet));
     }
-    ~CSSViewportRule();
+    virtual ~CSSViewportRule();
 
     virtual CSSRule::Type type() const OVERRIDE { return VIEWPORT_RULE; }
     virtual String cssText() const OVERRIDE;
@@ -53,11 +54,13 @@ public:
 
     CSSStyleDeclaration* style() const;
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
     CSSViewportRule(StyleRuleViewport*, CSSStyleSheet*);
 
-    RefPtr<StyleRuleViewport> m_viewportRule;
-    mutable RefPtr<StyleRuleCSSStyleDeclaration> m_propertiesCSSOMWrapper;
+    RefPtrWillBeMember<StyleRuleViewport> m_viewportRule;
+    mutable RefPtrWillBeMember<StyleRuleCSSStyleDeclaration> m_propertiesCSSOMWrapper;
 };
 
 DEFINE_CSS_RULE_TYPE_CASTS(CSSViewportRule, VIEWPORT_RULE);