Add *CSS* prefix to FontValue and FontFeatureValue

Source/core/css/resolver/FontBuilder.cpp

Index: Source/core/css/resolver/FontBuilder.cpp
diff --git a/Source/core/css/resolver/FontBuilder.cpp b/Source/core/css/resolver/FontBuilder.cpp
index 3d3a2e6efb5235b1da38d20250efa6396e1e49c5..9936d03162a7d0c8c808e0bc468ff21ee6a827e0 100644
--- a/Source/core/css/resolver/FontBuilder.cpp
+++ b/Source/core/css/resolver/FontBuilder.cpp
@@ -24,7 +24,7 @@
 #include "core/css/resolver/FontBuilder.h"
 
 #include "core/css/CSSCalculationValue.h"
-#include "core/css/FontFeatureValue.h"
+#include "core/css/CSSFontFeatureValue.h"
 #include "core/css/FontSize.h"
 #include "core/page/Frame.h"
 #include "core/page/Settings.h"
@@ -505,7 +505,7 @@ void FontBuilder::setFeatureSettingsValue(CSSValue* value)
         CSSValue* item = list->itemWithoutBoundsCheck(i);
         if (!item->isFontFeatureValue())
             continue;
-        FontFeatureValue* feature = static_cast<FontFeatureValue*>(item);
+        CSSFontFeatureValue* feature = toCSSFontFeatureValue(item);
         settings->append(FontFeature(feature->tag(), feature->value()));
     }
     scope.fontDescription().setFeatureSettings(settings.release());