[SPv2] Stop recording paired display items (except for subsequence markers)

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

 /*
  * Copyright (C) 2007, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.  All rights reserved.
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2009-2010. 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
@@ skipping 139 matching lines @@
         paintInfo().context, m_object,
         WebCoreCompositeToSkiaComposite(CompositeSourceOver, blendMode),
         opacity, &compositingBounds));
   }
 }
 
 void SVGPaintContext::applyClipIfNecessary() {
   ClipPathOperation* clipPathOperation = m_object.styleRef().clipPath();
   if (!clipPathOperation)
     return;
-  m_clipPathClipper.emplace(paintInfo().context, *clipPathOperation, m_object,
-                            m_object.objectBoundingBox(), FloatPoint());
+  if (!RuntimeEnabledFeatures::slimmingPaintV2Enabled()) {
+    m_clipPathClipper.emplace(paintInfo().context, *clipPathOperation, m_object,
+                              m_object.objectBoundingBox(), FloatPoint());
+  }
 }
 
 bool SVGPaintContext::applyMaskIfNecessary(SVGResources* resources) {
   if (LayoutSVGResourceMasker* masker =
           resources ? resources->masker() : nullptr) {
     if (!SVGMaskPainter(*masker).prepareEffect(m_object, paintInfo().context))
       return false;
     m_masker = masker;
   }
   return true;
@@ skipping 33 matching lines @@
   // so elements outside the initial paint (due to scrolling, etc) paint.
   m_filterPaintInfo->m_cullRect.m_rect = LayoutRect::infiniteIntRect();
   return true;
 }
 
 bool SVGPaintContext::isIsolationInstalled() const {
   if (m_compositingRecorder)
     return true;
   if (m_masker || m_filter)
     return true;
-  if (m_clipPathClipper && m_clipPathClipper->usingMask())
+  if (!RuntimeEnabledFeatures::slimmingPaintV2Enabled() && m_clipPathClipper &&
+      m_clipPathClipper->usingMask())
     return true;
   return false;
 }
 
 void SVGPaintContext::paintResourceSubtree(GraphicsContext& context,
                                            const LayoutObject* item) {
   DCHECK(item);
   DCHECK(!item->needsLayout());
 
   PaintInfo info(context, LayoutRect::infiniteIntRect(), PaintPhaseForeground,
@@ skipping 43 matching lines @@
   // though.
   // Additionally, it's not really safe/guaranteed to be correct, as
   // something down the flags pipe may want to farther tweak the color
   // filter, which could yield incorrect results. (Consider just using
   // saveLayer() w/ this color filter explicitly instead.)
   flags.setColorFilter(sk_ref_sp(paintInfo.context.getColorFilter()));
   return true;
 }
 
 }  // namespace blink