Migrate the remaining CSS properties interpolable as Lengths to LengthInterpolationType

Source/core/style/ComputedStyle.h

Index: Source/core/style/ComputedStyle.h
diff --git a/Source/core/style/ComputedStyle.h b/Source/core/style/ComputedStyle.h
index e8f1dd447b7c3da63b8cea7aa1f136bd3b89779c..5e4aabdbc4627aebd9ffc7e748c9fa125e28b3e7 100644
--- a/Source/core/style/ComputedStyle.h
+++ b/Source/core/style/ComputedStyle.h
@@ -1470,8 +1470,14 @@ public:
     void setFloodColor(const Color& c) { accessSVGStyle().setFloodColor(c); }
     void setLightingColor(const Color& c) { accessSVGStyle().setLightingColor(c); }
 
+    EBaselineShift baselineShift() const { return svgStyle().baselineShift(); }
     const Length& baselineShiftValue() const { return svgStyle().baselineShiftValue(); }
-    void setBaselineShiftValue(const Length& s) { accessSVGStyle().setBaselineShiftValue(s); }
+    void setBaselineShiftValue(const Length& value)
+    {
+        SVGComputedStyle& svgStyle = accessSVGStyle();
+        svgStyle.setBaselineShift(BS_LENGTH);
+        svgStyle.setBaselineShiftValue(value);
+    }
 
     void setShapeOutside(PassRefPtrWillBeRawPtr<ShapeValue> value)
     {