Make CPDF_ClipPath have a CPDF_ClipPathData rather than inheriting

core/fpdfapi/fpdf_page/cpdf_clippathdata.cpp

Index: core/fpdfapi/fpdf_page/cpdf_clippathdata.cpp
diff --git a/core/fpdfapi/fpdf_page/cpdf_clippathdata.cpp b/core/fpdfapi/fpdf_page/cpdf_clippathdata.cpp
deleted file mode 100644
index 9c84b4ae28fbb77d114785afa16f2f3211171549..0000000000000000000000000000000000000000
--- a/core/fpdfapi/fpdf_page/cpdf_clippathdata.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-// 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/cpdf_clippathdata.h"
-
-#include "core/fpdfapi/fpdf_page/include/cpdf_path.h"
-#include "core/fpdfapi/fpdf_page/include/cpdf_textobject.h"
-
-CPDF_ClipPathData::CPDF_ClipPathData() {}
-
-CPDF_ClipPathData::~CPDF_ClipPathData() {}
-
-CPDF_ClipPathData::CPDF_ClipPathData(const CPDF_ClipPathData& src) {
-  m_PathAndTypeList = src.m_PathAndTypeList;
-
-  m_TextList.resize(src.m_TextList.size());
-  for (size_t i = 0; i < src.m_TextList.size(); ++i) {
-    if (src.m_TextList[i])
-      m_TextList[i].reset(src.m_TextList[i]->Clone());
-  }
-}