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

third_party/WebKit/Source/core/paint/FloatClipRecorder.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/FloatClipRecorder.h"
 
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/paint/FloatClipDisplayItem.h"
 #include "platform/graphics/paint/PaintController.h"
 
 namespace blink {
 
 FloatClipRecorder::FloatClipRecorder(GraphicsContext& context,
                                      const DisplayItemClient& client,
                                      PaintPhase paintPhase,
                                      const FloatRect& clipRect)
     : m_context(context),
       m_client(client),
       m_clipType(DisplayItem::paintPhaseToFloatClipType(paintPhase)) {
+  if (RuntimeEnabledFeatures::slimmingPaintV2Enabled())
+    return;
   m_context.getPaintController().createAndAppend<FloatClipDisplayItem>(
       m_client, m_clipType, clipRect);
 }
 
 FloatClipRecorder::~FloatClipRecorder() {
+  if (RuntimeEnabledFeatures::slimmingPaintV2Enabled())
+    return;
   DisplayItem::Type endType =
       DisplayItem::floatClipTypeToEndFloatClipType(m_clipType);
   m_context.getPaintController().endItem<EndFloatClipDisplayItem>(m_client,
                                                                   endType);
 }
 
 }  // namespace blink