WIP for display item list backed by ListContainer

Source/core/paint/DisplayItemListPaintTest.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 "platform/graphics/paint/DisplayItemList.h"
 
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutText.h"
 #include "core/layout/LayoutView.h"
@@ skipping 39 matching lines @@
     {
         RuntimeEnabledFeatures::setSlimmingPaintEnabled(m_originalSlimmingPaintEnabled);
     }
 
     LayoutView* m_layoutView;
     bool m_originalSlimmingPaintEnabled;
 };
 
 class TestDisplayItem : public DisplayItem {
 public:
-    TestDisplayItem(const DisplayItemClientWrapper& client, Type type) : DisplayItem(client, type) { }
+    TestDisplayItem(DisplayItemClientWrapper& client, Type type)
+    {
+        setClientAndType(client, type);
+    }
+
+    TestDisplayItem(LayoutObject& client, Type type)
+    {
+        DisplayItemClientWrapper clientWrapper(client);
+        setClientAndType(clientWrapper, type);
+    }
+
+    TestDisplayItem(InlineBox& client, Type type)
+    {
+        DisplayItemClientWrapper clientWrapper(client);
+        setClientAndType(clientWrapper, type);
+    }
 
     virtual void replay(GraphicsContext&) override final { ASSERT_NOT_REACHED(); }
     virtual void appendToWebDisplayItemList(WebDisplayItemList*) const override final { ASSERT_NOT_REACHED(); }
 };
 
 #ifndef NDEBUG
 #define TRACE_DISPLAY_ITEMS(i, expected, actual) \
     String trace = String::format("%d: ", (int)i) + "Expected: " + (expected).asDebugString() + " Actual: " + (actual).asDebugString(); \
     SCOPED_TRACE(trace.utf8().data());
 #else
@@ skipping 79 matching lines @@
     InlineTextBox& newFirstTextBox = *newText.firstTextBox();
     InlineTextBox& secondTextBox = *newText.firstTextBox()->nextTextBox();
 
     EXPECT_DISPLAY_LIST(rootDisplayItemList().displayItems(), 3,
         TestDisplayItem(layoutView, DisplayItem::BoxDecorationBackground),
         TestDisplayItem(newFirstTextBox, DisplayItem::paintPhaseToDrawingType(PaintPhaseForeground)),
         TestDisplayItem(secondTextBox, DisplayItem::paintPhaseToDrawingType(PaintPhaseForeground)));
 }
 
 } // namespace blink