Current work-in-progress crbug.com/567021

third_party/WebKit/Source/core/dom/StyleSheetCollection.h

Index: third_party/WebKit/Source/core/dom/StyleSheetCollection.h
diff --git a/third_party/WebKit/Source/core/dom/StyleSheetCollection.h b/third_party/WebKit/Source/core/dom/StyleSheetCollection.h
index 47d467d2bd424c6be280c6a0a83452bc001636b4..9953b373932c0d784349b4ff3da905c7c25b2c3d 100644
--- a/third_party/WebKit/Source/core/dom/StyleSheetCollection.h
+++ b/third_party/WebKit/Source/core/dom/StyleSheetCollection.h
@@ -29,6 +29,7 @@
 #define StyleSheetCollection_h
 
 #include "core/CoreExport.h"
+#include "core/css/ActiveStyleSheets.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Allocator.h"
 #include "wtf/Vector.h"
@@ -46,19 +47,19 @@ public:
 
     StyleSheetCollection();
 
-    const HeapVector<Member<CSSStyleSheet>>& activeAuthorStyleSheets() const { return m_activeAuthorStyleSheets; }
+    const ActiveStyleSheetVector& activeAuthorStyleSheets() const { return m_activeAuthorStyleSheets; }
     const HeapVector<Member<StyleSheet>>& styleSheetsForStyleSheetList() const { return m_styleSheetsForStyleSheetList; }
 
     void swap(StyleSheetCollection&);
     void swapSheetsForSheetList(HeapVector<Member<StyleSheet>>&);
-    void appendActiveStyleSheet(CSSStyleSheet*);
+    void appendActiveStyleSheet(const ActiveStyleSheet&);
     void appendSheetForList(StyleSheet*);
 
     DECLARE_VIRTUAL_TRACE();
 
 protected:
     HeapVector<Member<StyleSheet>> m_styleSheetsForStyleSheetList;
-    HeapVector<Member<CSSStyleSheet>> m_activeAuthorStyleSheets;
+    ActiveStyleSheetVector m_activeAuthorStyleSheets;
 };
 
 } // namespace blink