[Slimming Paint] Allow 3D transforms of different types.

Source/platform/graphics/paint/DisplayItemTransformTreeBuilderTest.cpp

 // Copyright 2015 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/DisplayItemTransformTreeBuilder.h"
 
 #include "platform/graphics/paint/DisplayItem.h"
 #include "platform/graphics/paint/DisplayItemClient.h"
 #include "platform/graphics/paint/DisplayItemTransformTree.h"
@@ skipping 18 matching lines @@
 class DisplayItemTransformTreeBuilderTest : public ::testing::Test {
 protected:
     DisplayItemTransformTreeBuilder& builder() { return m_builder; }
 
     void processDisplayItem(const DisplayItem& displayItem) { m_builder.processDisplayItem(displayItem); }
     void processDisplayItem(PassOwnPtr<DisplayItem> displayItem) { processDisplayItem(*displayItem); }
     void processDummyDisplayItem() { processDisplayItem(DummyDisplayItem::create(newDummyClient())); }
     DisplayItemClient processBeginTransform3D(const TransformationMatrix& transform)
     {
         DisplayItemClient client = newDummyClient();
-        processDisplayItem(BeginTransform3DDisplayItem::create(client, transform));
+        processDisplayItem(BeginTransform3DDisplayItem::create(client, DisplayItem::Transform3DElementTransform, transform));
         return client;
     }
-    void processEndTransform3D(DisplayItemClient client) { processDisplayItem(EndTransform3DDisplayItem::create(client)); }
+    void processEndTransform3D(DisplayItemClient client)
+    {
+        processDisplayItem(EndTransform3DDisplayItem::create(client, DisplayItem::transform3DTypeToEndTransform3DType(DisplayItem::Transform3DElementTransform)));
+    }
 
 private:
     struct DummyClient { };
 
     // This makes empty objects which can be used as display item clients.
     DisplayItemClient newDummyClient()
     {
         m_dummyClients.append(adoptPtr(new DummyClient));
         return toDisplayItemClient(m_dummyClients.last().get());
     }
@@ skipping 226 matching lines @@
     WebDisplayItemTransformTree tree(builder().releaseTransformTree());
 
     const auto& transformNode = tree.nodeAt(tree.rangeRecordAt(0).transformNodeIndex);
     ASSERT_FALSE(transformNode.isRoot());
     EXPECT_TRANSFORMS_ALMOST_EQ(matrix2, transformNode.matrix);
     EXPECT_TRANSFORMS_ALMOST_EQ(matrix1, tree.parentNode(transformNode).matrix);
 }
 
 } // namespace
 } // namespace blink