Allow certain SP recorder classes to defer their "begin" operation.

Source/core/paint/SVGShapePainter.cpp

Index: Source/core/paint/SVGShapePainter.cpp
diff --git a/Source/core/paint/SVGShapePainter.cpp b/Source/core/paint/SVGShapePainter.cpp
index f753df97bcc244ec8f4818c8d061b2d717fdf1d5..e62e05fe348f8cc6654faf0fea0cce927f952d5f 100644
--- a/Source/core/paint/SVGShapePainter.cpp
+++ b/Source/core/paint/SVGShapePainter.cpp
@@ -212,9 +212,9 @@ void SVGShapePainter::paintMarker(const PaintInfo& paintInfo, LayoutSVGResourceM
         markerPaintInfo.context = &contextRecorder.context();
 
         TransformRecorder transformRecorder(*markerPaintInfo.context, marker, marker.markerTransformation(position.origin, position.angle, strokeWidth));
-        OwnPtr<FloatClipRecorder> clipRecorder;
+        FloatClipRecorder clipRecorder(*markerPaintInfo.context, marker, markerPaintInfo.phase);
         if (SVGLayoutSupport::isOverflowHidden(&marker))
-            clipRecorder = adoptPtr(new FloatClipRecorder(*markerPaintInfo.context, marker, markerPaintInfo.phase, marker.viewport()));
+            clipRecorder.begin(marker.viewport());
 
         SVGContainerPainter(marker).paint(markerPaintInfo);
     }