Revert of Remove unneeded CPVT classes.

core/fpdfdoc/ctypeset.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_CTYPESET_H_
 #define CORE_FPDFDOC_CTYPESET_H_
 
 #include "core/fpdfdoc/cpvt_floatrect.h"
 #include "core/fxcrt/include/fx_system.h"
 
 class CPDF_VariableText;
 class CSection;
 
 class CTypeset {
  public:
   explicit CTypeset(CSection* pSection);
-  ~CTypeset();
-
-  CFX_PointF GetEditSize(FX_FLOAT fFontSize);
+  virtual ~CTypeset();
+  CPVT_Size GetEditSize(FX_FLOAT fFontSize);
   CPVT_FloatRect Typeset();
   CPVT_FloatRect CharArray();
 
  private:
   void SplitLines(FX_BOOL bTypeset, FX_FLOAT fFontSize);
   void OutputLines();
-  FX_FLOAT GetXPosForAlignment(FX_FLOAT fTypesetWidth,
-                               FX_FLOAT fLineWidth) const;
 
   CPVT_FloatRect m_rcRet;
   CPDF_VariableText* m_pVT;
   CSection* const m_pSection;
 };
 
 #endif  // CORE_FPDFDOC_CTYPESET_H_