WIP for display item list backed by ListContainer

Source/core/paint/BoxClipper.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 "config.h"
 #include "core/paint/BoxClipper.h"
 
 #include "core/layout/LayoutBox.h"
 #include "core/paint/DeprecatedPaintLayer.h"
 #include "core/paint/PaintInfo.h"
@@ skipping 40 matching lines @@
         if (conservativeClipRect.contains(contentsVisualOverflow))
             return;
     }
 
     OwnPtr<Vector<FloatRoundedRect>> roundedRects;
     if (hasBorderRadius) {
         roundedRects = adoptPtr(new Vector<FloatRoundedRect>());
         roundedRects->append(clipRoundedRect);
     }
 
-    OwnPtr<ClipDisplayItem> clipDisplayItem = ClipDisplayItem::create(m_box, m_clipType, pixelSnappedIntRect(clipRect), roundedRects.release());
-    if (RuntimeEnabledFeatures::slimmingPaintEnabled()) {
-        m_clipType = m_paintInfo.displayItemTypeForClipping();
-        ASSERT(m_paintInfo.context->displayItemList());
-        if (!m_paintInfo.context->displayItemList()->displayItemConstructionIsDisabled())
-            m_paintInfo.context->displayItemList()->add(clipDisplayItem.release());
-    } else {
-        clipDisplayItem->replay(*paintInfo.context);
-    }
+    ALLOW_UNUSED_LOCAL(m_clipType);
+    //OwnPtr<ClipDisplayItem> clipDisplayItem = ClipDisplayItem::create(m_box, m_clipType, pixelSnappedIntRect(clipRect), roundedRects.release());
+    //if (RuntimeEnabledFeatures::slimmingPaintEnabled()) {
+    //    m_clipType = m_paintInfo.displayItemTypeForClipping();
+    //    ASSERT(m_paintInfo.context->displayItemList());
+    //    if (!m_paintInfo.context->displayItemList()->displayItemConstructionIsDisabled())
+    //        m_paintInfo.context->displayItemList()->add(clipDisplayItem.release());
+    //} else {
+    //    clipDisplayItem->replay(*paintInfo.context);
+    //}
 
     m_pushedClip = true;
 }
 
 BoxClipper::~BoxClipper()
 {
     if (!m_pushedClip)
         return;
 
     ASSERT(m_box.hasControlClip() || (m_box.hasOverflowClip() && !m_box.layer()->isSelfPaintingLayer()));
 
-    DisplayItem::Type endType = DisplayItem::clipTypeToEndClipType(m_clipType);
-    if (RuntimeEnabledFeatures::slimmingPaintEnabled()) {
-        ASSERT(m_paintInfo.context->displayItemList());
-        if (!m_paintInfo.context->displayItemList()->displayItemConstructionIsDisabled()) {
-            if (m_paintInfo.context->displayItemList()->lastDisplayItemIsNoopBegin())
-                m_paintInfo.context->displayItemList()->removeLastDisplayItem();
-            else
-                m_paintInfo.context->displayItemList()->add(EndClipDisplayItem::create(m_box, endType));
-        }
-    } else {
-        EndClipDisplayItem endClipDisplayItem(m_box, endType);
-        endClipDisplayItem.replay(*m_paintInfo.context);
-    }
+    //DisplayItem::Type endType = DisplayItem::clipTypeToEndClipType(m_clipType);
+    //if (RuntimeEnabledFeatures::slimmingPaintEnabled()) {
+    //    ASSERT(m_paintInfo.context->displayItemList());
+    //    if (!m_paintInfo.context->displayItemList()->displayItemConstructionIsDisabled()) {
+    //        if (m_paintInfo.context->displayItemList()->lastDisplayItemIsNoopBegin())
+    //            m_paintInfo.context->displayItemList()->removeLastDisplayItem();
+    //        else
+    //            m_paintInfo.context->displayItemList()->add(EndClipDisplayItem::create(m_box, endType));
+    //    }
+    //} else {
+    //    EndClipDisplayItem endClipDisplayItem(m_box, endType);
+    //    endClipDisplayItem.replay(*m_paintInfo.context);
+    //}
 }
 
 } // namespace blink