Use the baseline information exposed by C++ to pipe baseline data through RenderBox.

sky/engine/core/dom/Element.cpp

Index: sky/engine/core/dom/Element.cpp
diff --git a/sky/engine/core/dom/Element.cpp b/sky/engine/core/dom/Element.cpp
index 367843c5dd2b0fae2e187ba0c2067786f09e2888..02afe79cc179e34ad49ff2f247f7565b8afb1a28 100644
--- a/sky/engine/core/dom/Element.cpp
+++ b/sky/engine/core/dom/Element.cpp
@@ -975,14 +975,14 @@ void Element::setMaxContentWidth(double width)
 double Element::alphabeticBaseline() const
 {
     if (RenderBox* box = renderBox())
-        return box->baselinePosition(AlphabeticBaseline, true, HorizontalLine, PositionOfInteriorLineBoxes);
+        return box->firstLineBoxBaseline(FontBaselineOrAuto(AlphabeticBaseline));
     return 0;
 }
 
 double Element::ideographicBaseline() const
 {
     if (RenderBox* box = renderBox())
-        return box->baselinePosition(IdeographicBaseline, true, HorizontalLine, PositionOfInteriorLineBoxes);
+        return box->firstLineBoxBaseline(FontBaselineOrAuto(IdeographicBaseline));
     return 0;
 }