Make code compile with clang_use_chrome_plugin (part I)

core/fpdfapi/fpdf_edit/editint.h

 // Copyright 2014 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_FPDFAPI_FPDF_EDIT_EDITINT_H_
 #define CORE_FPDFAPI_FPDF_EDIT_EDITINT_H_
 
 #include <vector>
 
 #include "core/fxcrt/include/fx_basic.h"
 #include "core/fxcrt/include/fx_stream.h"
 #include "core/fxcrt/include/fx_system.h"
 
 class CPDF_Creator;
 class CPDF_Object;
 
 class CPDF_ObjectStream {
  public:
   struct Item {
     uint32_t objnum;
     FX_STRSIZE offset;
   };
 
   CPDF_ObjectStream();
+  ~CPDF_ObjectStream();
 
   void Start();
   FX_FILESIZE End(CPDF_Creator* pCreator);
   void CompressIndirectObject(uint32_t dwObjNum, const CPDF_Object* pObj);
   void CompressIndirectObject(uint32_t dwObjNum,
                               const uint8_t* pBuffer,
                               uint32_t dwSize);
 
   std::vector<Item> m_Items;
   CFX_ByteTextBuf m_Buffer;
   uint32_t m_dwObjNum;
   int32_t m_index;
 };
 
 class CPDF_XRefStream {
  public:
   struct Index {
     uint32_t objnum;
     uint32_t count;
   };
 
   CPDF_XRefStream();
+  ~CPDF_XRefStream();
 
   FX_BOOL Start();
   int32_t CompressIndirectObject(uint32_t dwObjNum,
                                  const CPDF_Object* pObj,
                                  CPDF_Creator* pCreator);
   int32_t CompressIndirectObject(uint32_t dwObjNum,
                                  const uint8_t* pBuffer,
                                  uint32_t dwSize,
                                  CPDF_Creator* pCreator);
   FX_BOOL End(CPDF_Creator* pCreator, FX_BOOL bEOF = FALSE);
   void AddObjectNumberToIndexArray(uint32_t objnum);
   FX_BOOL EndXRefStream(CPDF_Creator* pCreator);
 
   std::vector<Index> m_IndexArray;
   FX_FILESIZE m_PrevOffset;
   uint32_t m_dwTempObjNum;
 
  protected:
   int32_t EndObjectStream(CPDF_Creator* pCreator, FX_BOOL bEOF = TRUE);
   FX_BOOL GenerateXRefStream(CPDF_Creator* pCreator, FX_BOOL bEOF);
+
   size_t m_iSeg;
   CPDF_ObjectStream m_ObjStream;
   CFX_ByteTextBuf m_Buffer;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_EDIT_EDITINT_H_