WIP for display item list backed by ListContainer

Source/platform/graphics/paint/DisplayItemTransformTreeBuilderTest.cpp

Index: Source/platform/graphics/paint/DisplayItemTransformTreeBuilderTest.cpp
diff --git a/Source/platform/graphics/paint/DisplayItemTransformTreeBuilderTest.cpp b/Source/platform/graphics/paint/DisplayItemTransformTreeBuilderTest.cpp
index aeff937d83552c99d243ce8be0cdf6f8749fd0f1..139554fd921e89b5208ec8c1fe66cd1c588744e1 100644
--- a/Source/platform/graphics/paint/DisplayItemTransformTreeBuilderTest.cpp
+++ b/Source/platform/graphics/paint/DisplayItemTransformTreeBuilderTest.cpp
@@ -26,9 +26,30 @@ struct DummyClient {
 
 class DummyDisplayItem : public DisplayItem {
 public:
-    static PassOwnPtr<DummyDisplayItem> create(const DummyClient& client) { return adoptPtr(new DummyDisplayItem(client)); }
-private:
-    DummyDisplayItem(const DummyClient& client) : DisplayItem(client, DisplayItem::DrawingFirst) { }
+    DummyDisplayItem(DummyClient client)
+    {
+        DisplayItemClientWrapper clientWrapper(client);
+        setClientAndType(clientWrapper, DisplayItem::DrawingFirst);
+    }
+};
+
+class TestBeginTransform3DDisplayItem : public BeginTransform3DDisplayItem {
+public:
+    TestBeginTransform3DDisplayItem(DummyClient client, DisplayItem::Type type, TransformationMatrix transform)
+    {
+        DisplayItemClientWrapper clientWrapper(client);
+        setClientAndType(clientWrapper, type);
+        setNew(transform);
+    }
+};
+
+class TestEndTransform3DDisplayItem : public EndTransform3DDisplayItem {
+public:
+    TestEndTransform3DDisplayItem(DummyClient client, DisplayItem::Type type)
+    {
+        DisplayItemClientWrapper clientWrapper(client);
+        setClientAndType(clientWrapper, type);
+    }
 };
 
 class DisplayItemTransformTreeBuilderTest : public ::testing::Test {
@@ -37,16 +58,16 @@ protected:
 
     void processDisplayItem(const DisplayItem& displayItem) { m_builder.processDisplayItem(displayItem); }
     void processDisplayItem(PassOwnPtr<DisplayItem> displayItem) { processDisplayItem(*displayItem); }
-    void processDummyDisplayItem() { processDisplayItem(DummyDisplayItem::create(newDummyClient())); }
+    void processDummyDisplayItem() { processDisplayItem(DummyDisplayItem(newDummyClient())); }
     const DummyClient& processBeginTransform3D(const TransformationMatrix& transform)
     {
         const DummyClient& client = newDummyClient();
-        processDisplayItem(BeginTransform3DDisplayItem::create(client, DisplayItem::Transform3DElementTransform, transform));
+        processDisplayItem(TestBeginTransform3DDisplayItem(client, DisplayItem::Transform3DElementTransform, transform));
         return client;
     }
     void processEndTransform3D(const DummyClient& client)
     {
-        processDisplayItem(EndTransform3DDisplayItem::create(client, DisplayItem::transform3DTypeToEndTransform3DType(DisplayItem::Transform3DElementTransform)));
+        processDisplayItem(TestEndTransform3DDisplayItem(client, DisplayItem::transform3DTypeToEndTransform3DType(DisplayItem::Transform3DElementTransform)));
     }
 
 private: