Use Length for baselineShiftValue in SVGLayoutStyle

Source/core/layout/svg/SVGTextLayoutEngine.cpp

Index: Source/core/layout/svg/SVGTextLayoutEngine.cpp
diff --git a/Source/core/layout/svg/SVGTextLayoutEngine.cpp b/Source/core/layout/svg/SVGTextLayoutEngine.cpp
index 737f7e4b4cb194e242dfc3b773fca929678c9be0..a32b06d4e0cab87f189232922b02b51384a527ed 100644
--- a/Source/core/layout/svg/SVGTextLayoutEngine.cpp
+++ b/Source/core/layout/svg/SVGTextLayoutEngine.cpp
@@ -427,8 +427,6 @@ void SVGTextLayoutEngine::layoutTextOnLineOrPath(SVGInlineTextBox* textBox, cons
     if (m_inPathLayout && !m_textPathCalculator)
         return;
 
-    SVGElement* lengthContext = toSVGElement(text.parent()->node());
-
     LayoutObject* textParent = text.parent();
     bool definesTextLength = textParent ? parentDefinesTextLength(textParent) : false;
 
@@ -449,7 +447,7 @@ void SVGTextLayoutEngine::layoutTextOnLineOrPath(SVGInlineTextBox* textBox, cons
     bool applySpacingToNextCharacter = false;
 
     float lastAngle = 0;
-    float baselineShift = baselineLayout.calculateBaselineShift(svgStyle, lengthContext);
+    float baselineShift = baselineLayout.calculateBaselineShift(style);
     baselineShift -= baselineLayout.calculateAlignmentBaselineShift(m_isVerticalText, &text);
 
     // Main layout algorithm.