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

Source/core/paint/SVGContainerPainter.cpp

Index: Source/core/paint/SVGContainerPainter.cpp
diff --git a/Source/core/paint/SVGContainerPainter.cpp b/Source/core/paint/SVGContainerPainter.cpp
index 2d7d97dff4b111813ffd667539b2d82d9b2bf4b6..1d7bdfff1896b2ccd007eda439275d256c79aa95 100644
--- a/Source/core/paint/SVGContainerPainter.cpp
+++ b/Source/core/paint/SVGContainerPainter.cpp
@@ -31,10 +31,10 @@ void SVGContainerPainter::paint(const PaintInfo& paintInfo)
     PaintInfo paintInfoBeforeFiltering(paintInfo);
     TransformRecorder transformRecorder(*paintInfoBeforeFiltering.context, m_layoutSVGContainer, m_layoutSVGContainer.localToParentTransform());
     {
-        OwnPtr<FloatClipRecorder> clipRecorder;
+        FloatClipRecorder clipRecorder(*paintInfoBeforeFiltering.context, m_layoutSVGContainer, paintInfoBeforeFiltering.phase);
         if (m_layoutSVGContainer.isSVGViewportContainer() && SVGLayoutSupport::isOverflowHidden(&m_layoutSVGContainer)) {
             FloatRect viewport = m_layoutSVGContainer.localToParentTransform().inverse().mapRect(toLayoutSVGViewportContainer(m_layoutSVGContainer).viewport());
-            clipRecorder = adoptPtr(new FloatClipRecorder(*paintInfoBeforeFiltering.context, m_layoutSVGContainer, paintInfoBeforeFiltering.phase, viewport));
+            clipRecorder.begin(viewport);
         }
 
         SVGPaintContext paintContext(m_layoutSVGContainer, paintInfoBeforeFiltering);