Proper support for multiple text decorations.

Source/core/rendering/style/StyleRareInheritedData.h

Index: Source/core/rendering/style/StyleRareInheritedData.h
diff --git a/Source/core/rendering/style/StyleRareInheritedData.h b/Source/core/rendering/style/StyleRareInheritedData.h
index 3fc422b691b449dc0c0b1fad6b5c9f6a57647f15..55f8415c6f4d742d3af62379f359a01da77635db 100644
--- a/Source/core/rendering/style/StyleRareInheritedData.h
+++ b/Source/core/rendering/style/StyleRareInheritedData.h
@@ -31,15 +31,19 @@
 #include "platform/graphics/Color.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
+#include "wtf/RefVector.h"
 #include "wtf/text/AtomicString.h"
 
 namespace WebCore {
 
+class AppliedTextDecoration;
 class CursorList;
 class QuotesData;
 class ShadowList;
 class StyleImage;
 
+typedef RefVector<AppliedTextDecoration> AppliedTextDecorationList;
+
 // This struct is for rarely used inherited CSS3, CSS2, and WebKit-specific properties.
 // By grouping them together, we save space, and only allocate this object when someone
 // actually uses one of these properties.
@@ -140,6 +144,8 @@ public:
 
     Color tapHighlightColor;
 
+    RefPtr<AppliedTextDecorationList> appliedTextDecorations;
+
 private:
     StyleRareInheritedData();
     StyleRareInheritedData(const StyleRareInheritedData&);