1 files changed, 5 insertions, 2 deletions
diff --git a/chromium/third_party/WebKit/Source/core/css/CSSRule.h b/chromium/third_party/WebKit/Source/core/css/CSSRule.h
index 9cd66086e23..b160a9e82da 100644
--- a/chromium/third_party/WebKit/Source/core/css/CSSRule.h
+++ b/chromium/third_party/WebKit/Source/core/css/CSSRule.h
@@ -23,6 +23,7 @@
 #ifndef CSSRule_h
 #define CSSRule_h
 
+#include "platform/heap/Handle.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
@@ -32,7 +33,7 @@ class CSSParserContext;
 class CSSStyleSheet;
 class StyleRuleBase;
 
-class CSSRule : public RefCounted<CSSRule> {
+class CSSRule : public RefCountedWillBeGarbageCollectedFinalized<CSSRule> {
 public:
     virtual ~CSSRule() { }
 
@@ -53,7 +54,6 @@ public:
         WEBKIT_KEYFRAME_RULE = KEYFRAME_RULE,
         SUPPORTS_RULE = 12,
         VIEWPORT_RULE = 15,
-        WEBKIT_REGION_RULE = 16,
         WEBKIT_FILTER_RULE = 17
     };
 
@@ -73,6 +73,8 @@ public:
         m_parentRule = rule;
     }
 
+    virtual void trace(Visitor*);
+
     CSSStyleSheet* parentStyleSheet() const
     {
         if (m_parentIsRule)
@@ -102,6 +104,7 @@ private:
     mutable unsigned char m_hasCachedSelectorText : 1;
     unsigned char m_parentIsRule : 1;
 
+    // These should be Members, but no Members in unions.
     union {
         CSSRule* m_parentRule;
         CSSStyleSheet* m_parentStyleSheet;