Simplify SVGPathByteStream-based path-query functions

Source/core/svg/SVGPathElement.cpp

Index: Source/core/svg/SVGPathElement.cpp
diff --git a/Source/core/svg/SVGPathElement.cpp b/Source/core/svg/SVGPathElement.cpp
index b26d619e6b60a1bdadbd39a38cbcb890cbe1e54b..78b4a316975250abc81115dc97477ccd5da20bf0 100644
--- a/Source/core/svg/SVGPathElement.cpp
+++ b/Source/core/svg/SVGPathElement.cpp
@@ -68,23 +68,18 @@ DEFINE_NODE_FACTORY(SVGPathElement)
 
 float SVGPathElement::getTotalLength()
 {
-    float totalLength = 0;
-    getTotalLengthOfSVGPathByteStream(*pathByteStream(), totalLength);
-    return totalLength;
+    return getTotalLengthOfSVGPathByteStream(*pathByteStream());
 }
 
 PassRefPtrWillBeRawPtr<SVGPointTearOff> SVGPathElement::getPointAtLength(float length)
 {
-    FloatPoint point;
-    getPointAtLengthOfSVGPathByteStream(*pathByteStream(), length, point);
+    FloatPoint point = getPointAtLengthOfSVGPathByteStream(*pathByteStream(), length);
     return SVGPointTearOff::create(SVGPoint::create(point), 0, PropertyIsNotAnimVal);
 }
 
 unsigned SVGPathElement::getPathSegAtLength(float length)
 {
-    unsigned pathSeg = 0;
-    getSVGPathSegAtLengthFromSVGPathByteStream(*pathByteStream(), length, pathSeg);
-    return pathSeg;
+    return getSVGPathSegAtLengthFromSVGPathByteStream(*pathByteStream(), length);
 }
 
 PassRefPtrWillBeRawPtr<SVGPathSegClosePath> SVGPathElement::createSVGPathSegClosePath()