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 50cf4131846d65db58702b8175a944cdb5449ce0..c536d90579c546571ceaf3f37fdc62eb7b31b633 100644
--- a/Source/core/rendering/style/StyleRareInheritedData.h
+++ b/Source/core/rendering/style/StyleRareInheritedData.h
@@ -27,6 +27,7 @@
 
 #include "core/css/StyleColor.h"
 #include "core/rendering/style/DataRef.h"
+#include "core/rendering/style/RefVector.h"
 #include "platform/Length.h"
 #include "platform/graphics/Color.h"
 #include "wtf/PassRefPtr.h"
@@ -35,11 +36,14 @@
 
 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.
@@ -139,6 +143,8 @@ public:
 
     Color tapHighlightColor;
 
+    RefPtr<AppliedTextDecorationList> appliedTextDecorations;
+
 private:
     StyleRareInheritedData();
     StyleRareInheritedData(const StyleRareInheritedData&);