| Index: Source/core/css/WebKitCSSKeyframeRule.h | 
| diff --git a/Source/core/css/WebKitCSSKeyframeRule.h b/Source/core/css/WebKitCSSKeyframeRule.h | 
| index 43ef5f52a8ac7399f7cc8f31aaf8bf6738c29434..e34821e8cab51d98136b900a4f33175d8b50602f 100644 | 
| --- a/Source/core/css/WebKitCSSKeyframeRule.h | 
| +++ b/Source/core/css/WebKitCSSKeyframeRule.h | 
| @@ -31,6 +31,7 @@ | 
| namespace WebCore { | 
|  | 
| class CSSStyleDeclaration; | 
| +class MutableStylePropertySet; | 
| class StylePropertySet; | 
| class StyleRuleCSSStyleDeclaration; | 
| class WebKitCSSKeyframesRule; | 
| @@ -50,7 +51,7 @@ public: | 
| void getKeys(Vector<float>& keys) const   { parseKeyString(m_key, keys); } | 
|  | 
| const StylePropertySet* properties() const { return m_properties.get(); } | 
| -    StylePropertySet* mutableProperties(); | 
| +    MutableStylePropertySet* mutableProperties(); | 
| void setProperties(PassRefPtr<StylePropertySet>); | 
|  | 
| String cssText() const; | 
|  |