Use smart pointers for class owned pointers under xfa/fde

xfa/fde/tto/fde_textout.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 XFA_FDE_TTO_FDE_TEXTOUT_H_
 #define XFA_FDE_TTO_FDE_TEXTOUT_H_
 
 #include <memory>
+#include <vector>
 
 #include "core/fxge/include/fx_dib.h"
 #include "core/fxge/include/fx_ge.h"
 #include "xfa/fde/fde_object.h"
 #include "xfa/fgas/crt/fgas_utils.h"
 #include "xfa/fgas/font/fgas_font.h"
 
 #define FDE_TTOSTYLE_Underline 0x0001
 #define FDE_TTOSTYLE_Strikeout 0x0002
 #define FDE_TTOSTYLE_VerticalLayout 0x0004
@@ skipping 103 matching lines @@
                             FX_FLOAT& fWidth,
                             FX_FLOAT& fHeight);
   void SetLineWidth(CFX_RectF& rect);
   void DrawText(const FX_WCHAR* pwsStr,
                 int32_t iLength,
                 const CFX_RectF& rect,
                 const CFX_RectF& rtClip);
   void LoadText(const FX_WCHAR* pwsStr, int32_t iLength, const CFX_RectF& rect);
   void LoadEllipsis();
   void ExpandBuffer(int32_t iSize, int32_t iType);
-  void RetrieveEllPieces(int32_t*& pCharWidths);
+  void RetrieveEllPieces(std::vector<int32_t>* pCharWidths);
 
   void Reload(const CFX_RectF& rect);
   void ReloadLinePiece(CFDE_TTOLine* pLine, const CFX_RectF& rect);
   FX_BOOL RetriecePieces(uint32_t dwBreakStatus,
                          int32_t& iStartChar,
                          int32_t& iPieceWidths,
                          FX_BOOL bReload,
                          const CFX_RectF& rect);
   void AppendPiece(const FDE_TTOPIECE& ttoPiece,
                    FX_BOOL bNeedReload,
                    FX_BOOL bEnd);
   void ReplaceWidthEllipsis();
   void DoAlignment(const CFX_RectF& rect);
   void OnDraw(const CFX_RectF& rtClip);
   int32_t GetDisplayPos(FDE_TTOPIECE* pPiece);
   int32_t GetCharRects(const FDE_TTOPIECE* pPiece);
 
   FX_TXTRUN ToTextRun(const FDE_TTOPIECE* pPiece);
   void DrawLine(const FDE_TTOPIECE* pPiece, CFDE_Pen*& pPen);
 
-  CFX_TxtBreak* m_pTxtBreak;
-  CFGAS_GEFont* m_pFont;
+  std::unique_ptr<CFX_TxtBreak> m_pTxtBreak;
+  CFGAS_GEFont* m_pFont;  // not owned.
   FX_FLOAT m_fFontSize;
   FX_FLOAT m_fLineSpace;
   FX_FLOAT m_fLinePos;
   FX_FLOAT m_fTolerance;
   int32_t m_iAlignment;
   int32_t m_iTxtBkAlignment;
-  int32_t* m_pCharWidths;
-  int32_t m_iChars;
-  int32_t* m_pEllCharWidths;
-  int32_t m_iEllChars;
+  std::vector<int32_t> m_CharWidths;
+  std::vector<int32_t> m_EllCharWidths;
   FX_WCHAR m_wParagraphBkChar;
   FX_ARGB m_TxtColor;
   uint32_t m_dwStyles;
   uint32_t m_dwTxtBkStyles;
   CFX_WideString m_wsEllipsis;
   FX_BOOL m_bElliChanged;
   int32_t m_iEllipsisWidth;
   CFX_WideString m_wsText;
   CFX_RectF m_rtClip;
   CFX_RectF m_rtLogicClip;
   CFX_Matrix m_Matrix;
   CFDE_TTOLineArray m_ttoLines;
   int32_t m_iCurLine;
   int32_t m_iCurPiece;
   int32_t m_iTotalLines;
-  FXTEXT_CHARPOS* m_pCharPos;
-  int32_t m_iCharPosSize;
+  std::vector<FXTEXT_CHARPOS> m_CharPos;
   std::unique_ptr<CFDE_RenderDevice> m_pRenderDevice;
   CFX_Int32Array m_hotKeys;
   CFX_RectFArray m_rectArray;
 };
 
 #endif  // XFA_FDE_TTO_FDE_TEXTOUT_H_