Put the StyleResourceLoader on the stack.

sky/engine/core/css/resolver/StyleResolver.h

Index: sky/engine/core/css/resolver/StyleResolver.h
diff --git a/sky/engine/core/css/resolver/StyleResolver.h b/sky/engine/core/css/resolver/StyleResolver.h
index 787b906d2b22b35be4d2d57e4d621b411178156f..f8d3929400d615cb455eb2c0637358cf4f6bd781 100644
--- a/sky/engine/core/css/resolver/StyleResolver.h
+++ b/sky/engine/core/css/resolver/StyleResolver.h
@@ -25,7 +25,6 @@
 #include "sky/engine/core/css/MediaQueryEvaluator.h"
 #include "sky/engine/core/css/resolver/MatchedPropertiesCache.h"
 #include "sky/engine/core/css/resolver/ScopedStyleResolver.h"
-#include "sky/engine/core/css/resolver/StyleResourceLoader.h"
 #include "sky/engine/platform/heap/Handle.h"
 #include "sky/engine/wtf/Deque.h"
 #include "sky/engine/wtf/HashMap.h"
@@ -142,12 +141,8 @@ private:
 
     MatchedPropertiesCache m_matchedPropertiesCache;
 
-    OwnPtr<MediaQueryEvaluator> m_medium;
-
     RawPtr<Document> m_document;
 
-    StyleResourceLoader m_styleResourceLoader;
-
     StyleSharingList m_styleSharingList;
 
     OwnPtr<StyleResolverStats> m_styleResolverStats;