Move scroll paint property nodes to be owned by the transform tree

third_party/WebKit/Source/platform/testing/TestPaintArtifact.h

 // Copyright 2016 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.
 
 #ifndef TestPaintArtifact_h
 #define TestPaintArtifact_h
 
 #include "base/memory/ref_counted.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/paint/DisplayItemList.h"
@@ skipping 29 matching lines @@
 //       .rectDrawing(bounds3, color3);
 //   doSomethingWithArtifact(artifact);
 class TestPaintArtifact {
   STACK_ALLOCATED();
 
  public:
   TestPaintArtifact();
   ~TestPaintArtifact();
 
   // Add to the artifact.
-  TestPaintArtifact& chunk(
-      PassRefPtr<TransformPaintPropertyNode>,
-      PassRefPtr<ClipPaintPropertyNode>,
-      PassRefPtr<EffectPaintPropertyNode>,
-      PassRefPtr<ScrollPaintPropertyNode> = ScrollPaintPropertyNode::root());
+  TestPaintArtifact& chunk(PassRefPtr<const TransformPaintPropertyNode>,
+                           PassRefPtr<const ClipPaintPropertyNode>,
+                           PassRefPtr<const EffectPaintPropertyNode>);
   TestPaintArtifact& chunk(const PaintChunkProperties&);
   TestPaintArtifact& rectDrawing(const FloatRect& bounds, Color);
   TestPaintArtifact& foreignLayer(const FloatPoint&,
                                   const IntSize&,
                                   scoped_refptr<cc::Layer>);
 
   // Can't add more things once this is called.
   const PaintArtifact& build();
 
  private:
   class DummyRectClient;
   Vector<std::unique_ptr<DummyRectClient>> m_dummyClients;
 
   // Exists if m_built is false.
   DisplayItemList m_displayItemList;
   Vector<PaintChunk> m_paintChunks;
 
   // Exists if m_built is true.
   PaintArtifact m_paintArtifact;
 
   bool m_built;
 };
 
 }  // namespace blink
 
 #endif  // TestPaintArtifact_h