Apply SVG viewport clips in PaintLayer; paint background of replaced like boxes.

third_party/WebKit/Source/core/paint/SVGRootPainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/SVGRootPainter.h"
 
 #include "core/layout/svg/LayoutSVGRoot.h"
 #include "core/layout/svg/SVGLayoutSupport.h"
 #include "core/paint/BoxClipper.h"
 #include "core/paint/BoxPainter.h"
@@ skipping 25 matching lines @@
   paintOffsetToBorderBox.multiply(m_layoutSVGRoot.localToBorderBoxTransform());
   return paintOffsetToBorderBox;
 }
 
 void SVGRootPainter::paintReplaced(const PaintInfo& paintInfo,
                                    const LayoutPoint& paintOffset) {
   // An empty viewport disables rendering.
   if (pixelSnappedSize(paintOffset).isEmpty())
     return;
 
-  // SVG outlines are painted during PaintPhaseForeground.
-  if (shouldPaintSelfOutline(paintInfo.phase))
-    return;
-
   // An empty viewBox also disables rendering.
   // (http://www.w3.org/TR/SVG/coords.html#ViewBoxAttribute)
   SVGSVGElement* svg = toSVGSVGElement(m_layoutSVGRoot.node());
   DCHECK(svg);
   if (svg->hasEmptyViewBox())
     return;
 
   // Apply initial viewport clip.
   Optional<BoxClipper> boxClipper;
   if (m_layoutSVGRoot.shouldApplyViewportClip()) {
@@ skipping 16 matching lines @@
 
   BoxPainter(m_layoutSVGRoot)
       .paintChildren(paintContext.paintInfo(), LayoutPoint());
 
   PaintTiming& timing =
       PaintTiming::from(m_layoutSVGRoot.node()->document().topDocument());
   timing.markFirstContentfulPaint();
 }
 
 }  // namespace blink