Add StylePath and use it to store 'd' in ComputedStyle

third_party/WebKit/Source/core/style/SVGComputedStyle.h

Index: third_party/WebKit/Source/core/style/SVGComputedStyle.h
diff --git a/third_party/WebKit/Source/core/style/SVGComputedStyle.h b/third_party/WebKit/Source/core/style/SVGComputedStyle.h
index 9db42be21bd6d257bef465902df76a3c02970e62..925300f7d98110e0acc2bc19e02b327bbf83d8ce 100644
--- a/third_party/WebKit/Source/core/style/SVGComputedStyle.h
+++ b/third_party/WebKit/Source/core/style/SVGComputedStyle.h
@@ -89,7 +89,7 @@ public:
     static const AtomicString& initialMarkerEndResource() { return nullAtom; }
     static EMaskType initialMaskType() { return MT_LUMINANCE; }
     static EPaintOrder initialPaintOrder() { return PaintOrderNormal; }
-    static CSSPathValue* initialD() { return CSSPathValue::emptyPathValue(); }
+    static StylePath* initialD() { return StylePath::emptyPath(); }
     static Length initialCx() { return Length(Fixed); }
     static Length initialCy() { return Length(Fixed); }
     static Length initialX() { return Length(Fixed); }
@@ -115,7 +115,7 @@ public:
     void setTextAnchor(ETextAnchor val) { svg_inherited_flags.textAnchor = val; }
     void setMaskType(EMaskType val) { svg_noninherited_flags.f.maskType = val; }
     void setPaintOrder(EPaintOrder val) { svg_inherited_flags.paintOrder = (int)val; }
-    void setD(PassRefPtrWillBeRawPtr<CSSPathValue> d)
+    void setD(PassRefPtr<StylePath> d)
     {
         if (!(layout->d == d))
             layout.access()->d = d;
@@ -338,7 +338,7 @@ public:
     const Color& floodColor() const { return misc->floodColor; }
     const Color& lightingColor() const { return misc->lightingColor; }
     const Length& baselineShiftValue() const { return misc->baselineShiftValue; }
-    CSSPathValue* d() const { return layout->d.get(); }
+    StylePath* d() const { return layout->d.get(); }
     const Length& cx() const { return layout->cx; }
     const Length& cy() const { return layout->cy; }
     const Length& x() const { return layout->x; }