Draw recorded content directly into the containing PaintCanvas, when possible.

third_party/WebKit/Source/core/layout/svg/LayoutSVGResourcePattern.cpp

 /*
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright 2014 The Chromium Authors. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 200 matching lines @@
   SubtreeContentTransformScope contentTransformScope(contentTransform);
 
   PaintRecordBuilder builder(bounds);
   for (LayoutObject* child = patternLayoutObject->firstChild(); child;
        child = child->nextSibling())
     SVGPaintContext::paintResourceSubtree(builder.context(), child);
   PaintRecorder paintRecorder;
   PaintCanvas* canvas = paintRecorder.beginRecording(bounds);
   canvas->save();
   canvas->concat(affineTransformToSkMatrix(tileTransform));
-  canvas->drawPicture(builder.endRecording());
+  builder.endRecording(*canvas);
   canvas->restore();
   return paintRecorder.finishRecordingAsPicture();
 }
 
 }  // namespace blink