Put transform tree building in DisplayItemPropertyTreeBuilder.

Source/platform/exported/WebDisplayItemTransformTree.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 "public/platform/WebDisplayItemTransformTree.h"
 
 #include "platform/graphics/paint/DisplayItemTransformTree.h"
 
 namespace blink {
 
 WebDisplayItemTransformTree::WebDisplayItemTransformTree()
-    : m_private(adoptPtr(new DisplayItemTransformTree))
 {
 }
 
 WebDisplayItemTransformTree::WebDisplayItemTransformTree(const PassOwnPtr<DisplayItemTransformTree>& passImpl)
     : m_private(passImpl)
 {
 }
 
 WebDisplayItemTransformTree::~WebDisplayItemTransformTree()
 {
     // WebPrivateOwnPtr requires explicit clearing here.
     m_private.reset(nullptr);
 }
 
 size_t WebDisplayItemTransformTree::nodeCount() const
 {
     return m_private->nodeCount();
 }
 
 const WebDisplayItemTransformTree::TransformNode& WebDisplayItemTransformTree::nodeAt(size_t index) const
 {
     return m_private->nodeAt(index);
 }
 
-const WebDisplayItemTransformTree::TransformNode& WebDisplayItemTransformTree::parentNode(const WebDisplayItemTransformTree::TransformNode& node) const
-{
-    return m_private->parentNode(node);
-}
-
-size_t WebDisplayItemTransformTree::rangeRecordCount() const
-{
-    return m_private->rangeRecordCount();
-}
-
-const WebDisplayItemTransformTree::RangeRecord& WebDisplayItemTransformTree::rangeRecordAt(size_t index) const
-{
-    return m_private->rangeRecordAt(index);
-}
-
 } // namespace blink