Make DisplayItemClient an interface

third_party/WebKit/Source/core/paint/Transform3DRecorder.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 "core/paint/Transform3DRecorder.h"
 
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/paint/PaintController.h"
 #include "platform/graphics/paint/Transform3DDisplayItem.h"
 
 namespace blink {
 
 Transform3DRecorder::Transform3DRecorder(
     GraphicsContext& context,
-    const DisplayItemClientWrapper& client,
+    const DisplayItemClient& client,
     DisplayItem::Type type,
     const TransformationMatrix& transform,
     const FloatPoint3D& transformOrigin)
     : m_context(context)
     , m_client(client)
     , m_type(type)
 {
     ASSERT(DisplayItem::isTransform3DType(type));
     m_skipRecordingForIdentityTransform = transform.isIdentity();
 
     if (m_skipRecordingForIdentityTransform)
         return;
 
     m_context.paintController().createAndAppend<BeginTransform3DDisplayItem>(m_client, m_type, transform, transformOrigin);
 }
 
 Transform3DRecorder::~Transform3DRecorder()
 {
     if (m_skipRecordingForIdentityTransform)
         return;
 
     m_context.paintController().endItem<EndTransform3DDisplayItem>(m_client, DisplayItem::transform3DTypeToEndTransform3DType(m_type));
 }
 
 } // namespace blink