Make CPDF_Path have a CFX_Path rather than inheriting

core/fpdfapi/fpdf_page/cpdf_path.cpp

+// Copyright 2016 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/fpdfapi/fpdf_page/include/cpdf_path.h"
+
+CPDF_Path::CPDF_Path() {}
+
+CPDF_Path::CPDF_Path(const CPDF_Path& that) : m_Ref(that.m_Ref) {}
+
+CPDF_Path::~CPDF_Path() {}
+
+int CPDF_Path::GetPointCount() const {
+  return m_Ref.GetObject()->GetPointCount();
+}
+
+void CPDF_Path::SetPointCount(int count) {
+  m_Ref.GetPrivateCopy()->SetPointCount(count);
+}
+
+const FX_PATHPOINT* CPDF_Path::GetPoints() const {
+  return m_Ref.GetObject()->GetPoints();
+}
+
+FX_PATHPOINT* CPDF_Path::GetMutablePoints() {
+  return m_Ref.GetPrivateCopy()->GetPoints();
+}
+
+int CPDF_Path::GetFlag(int index) const {
+  return m_Ref.GetObject()->GetFlag(index);
+}
+
+FX_FLOAT CPDF_Path::GetPointX(int index) const {
+  return m_Ref.GetObject()->GetPointX(index);
+}
+
+FX_FLOAT CPDF_Path::GetPointY(int index) const {
+  return m_Ref.GetObject()->GetPointY(index);
+}
+
+CFX_FloatRect CPDF_Path::GetBoundingBox() const {
+  return m_Ref.GetObject()->GetBoundingBox();
+}
+
+CFX_FloatRect CPDF_Path::GetBoundingBox(FX_FLOAT line_width,
+                                        FX_FLOAT miter_limit) const {
+  return m_Ref.GetObject()->GetBoundingBox(line_width, miter_limit);
+}
+
+FX_BOOL CPDF_Path::IsRect() const {
+  return m_Ref.GetObject()->IsRect();
+}
+
+void CPDF_Path::Transform(const CFX_Matrix* pMatrix) {
+  m_Ref.GetPrivateCopy()->Transform(pMatrix);
+}
+
+void CPDF_Path::Append(const CPDF_Path& other, const CFX_Matrix* pMatrix) {
+  m_Ref.GetPrivateCopy()->Append(other.GetObject(), pMatrix);
+}
+
+void CPDF_Path::Append(const CFX_PathData* pData, const CFX_Matrix* pMatrix) {
+  m_Ref.GetPrivateCopy()->Append(pData, pMatrix);
+}
+
+void CPDF_Path::AppendRect(FX_FLOAT left,
+                           FX_FLOAT bottom,
+                           FX_FLOAT right,
+                           FX_FLOAT top) {
+  m_Ref.GetPrivateCopy()->AppendRect(left, bottom, right, top);
+}