Make DisplayItemClient an interface

third_party/WebKit/Source/platform/graphics/paint/Transform3DDisplayItem.h

 // 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.
 
 #ifndef Transform3DDisplayItem_h
 #define Transform3DDisplayItem_h
 
 #include "platform/geometry/FloatPoint3D.h"
 #include "platform/graphics/paint/DisplayItem.h"
 #include "platform/transforms/TransformationMatrix.h"
 #include "wtf/Assertions.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
 class PLATFORM_EXPORT BeginTransform3DDisplayItem final : public PairedBeginDisplayItem {
 public:
     BeginTransform3DDisplayItem(
-        const DisplayItemClientWrapper& client,
+        const DisplayItemClient& client,
         Type type,
         const TransformationMatrix& transform,
         const FloatPoint3D& transformOrigin)
         : PairedBeginDisplayItem(client, type, sizeof(*this))
         , m_transform(transform)
         , m_transformOrigin(transformOrigin)
     {
         ASSERT(DisplayItem::isTransform3DType(type));
     }
 
@@ skipping 15 matching lines @@
             && m_transformOrigin == static_cast<const BeginTransform3DDisplayItem&>(other).m_transformOrigin;
     }
 #endif
 
     const TransformationMatrix m_transform;
     const FloatPoint3D m_transformOrigin;
 };
 
 class PLATFORM_EXPORT EndTransform3DDisplayItem final : public PairedEndDisplayItem {
 public:
-    EndTransform3DDisplayItem(const DisplayItemClientWrapper& client, Type type)
+    EndTransform3DDisplayItem(const DisplayItemClient& client, Type type)
         : PairedEndDisplayItem(client, type, sizeof(*this))
     {
         ASSERT(DisplayItem::isEndTransform3DType(type));
     }
 
     void replay(GraphicsContext&) const override;
     void appendToWebDisplayItemList(const IntRect&, WebDisplayItemList*) const override;
 
 private:
 #if ENABLE(ASSERT)
     bool isEndAndPairedWith(DisplayItem::Type otherType) const final
     {
         return DisplayItem::transform3DTypeToEndTransform3DType(otherType) == type();
     }
 #endif
 };
 
 } // namespace blink
 
 #endif // Transform3DDisplayItem_h