Revert of Remove unneeded CPVT classes.

core/fpdfdoc/csection.h

 // 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
 
 #ifndef CORE_FPDFDOC_CSECTION_H_
 #define CORE_FPDFDOC_CSECTION_H_
 
 #include "core/fpdfdoc/cpvt_sectioninfo.h"
 #include "core/fpdfdoc/ctypeset.h"
 #include "core/fxcrt/include/fx_coordinates.h"
 #include "core/fxcrt/include/fx_system.h"
 
 class CPDF_VariableText;
 
 struct CPVT_LineInfo;
 struct CPVT_WordLine;
 struct CPVT_WordPlace;
 
 class CSection {
  public:
   explicit CSection(CPDF_VariableText* pVT);
-  ~CSection();
-
+  virtual ~CSection();
   void ResetAll();
   void ResetLineArray();
   void ResetWordArray();
   void ResetLinePlace();
   CPVT_WordPlace AddWord(const CPVT_WordPlace& place,
                          const CPVT_WordInfo& wordinfo);
   CPVT_WordPlace AddLine(const CPVT_LineInfo& lineinfo);
   void ClearWords(const CPVT_WordRange& PlaceRange);
   void ClearWord(const CPVT_WordPlace& place);
   CPVT_FloatRect Rearrange();
-  CFX_PointF GetSectionSize(FX_FLOAT fFontSize);
+  CPVT_Size GetSectionSize(FX_FLOAT fFontSize);
   CPVT_WordPlace GetBeginWordPlace() const;
   CPVT_WordPlace GetEndWordPlace() const;
   CPVT_WordPlace GetPrevWordPlace(const CPVT_WordPlace& place) const;
   CPVT_WordPlace GetNextWordPlace(const CPVT_WordPlace& place) const;
   void UpdateWordPlace(CPVT_WordPlace& place) const;
   CPVT_WordPlace SearchWordPlace(const CFX_FloatPoint& point) const;
   CPVT_WordPlace SearchWordPlace(FX_FLOAT fx,
                                  const CPVT_WordPlace& lineplace) const;
   CPVT_WordPlace SearchWordPlace(FX_FLOAT fx,
                                  const CPVT_WordRange& range) const;
 
   CPVT_WordPlace SecPlace;
   CPVT_SectionInfo m_SecInfo;
   CLines m_LineArray;
-  CFX_ArrayTemplate<CPVT_WordInfo*> m_WordArray;
+  CPVT_ArrayTemplate<CPVT_WordInfo*> m_WordArray;
 
  private:
   friend class CTypeset;
 
   void ClearLeftWords(int32_t nWordIndex);
   void ClearRightWords(int32_t nWordIndex);
   void ClearMidWords(int32_t nBeginIndex, int32_t nEndIndex);
 
   CPDF_VariableText* m_pVT;
 };
 
 #endif  // CORE_FPDFDOC_CSECTION_H_