WIP for display item list backed by ListContainer

Source/core/paint/BoxClipper.cpp

Index: Source/core/paint/BoxClipper.cpp
diff --git a/Source/core/paint/BoxClipper.cpp b/Source/core/paint/BoxClipper.cpp
index e9ad1b3894cdccf3d4cbe5c71541fd723396a040..2fd97c62d32aa33a2079a34cae36d6919cca3121 100644
--- a/Source/core/paint/BoxClipper.cpp
+++ b/Source/core/paint/BoxClipper.cpp
@@ -58,15 +58,16 @@ BoxClipper::BoxClipper(LayoutBox& box, const PaintInfo& paintInfo, const LayoutP
         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;
 }
@@ -78,19 +79,19 @@ BoxClipper::~BoxClipper()
 
     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