Properly ref-count CFGAS_GEFont with CFX_RetainPtr.

xfa/fde/ifde_txtedtengine.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_IFDE_TXTEDTENGINE_H_
 #define XFA_FDE_IFDE_TXTEDTENGINE_H_
 
 #include "core/fxge/fx_dib.h"
@@ skipping 54 matching lines @@
 
 enum FDE_TXTEDIT_LINEEND {
   FDE_TXTEDIT_LINEEND_Auto,
   FDE_TXTEDIT_LINEEND_CRLF,
   FDE_TXTEDIT_LINEEND_CR,
   FDE_TXTEDIT_LINEEND_LF,
 };
 
 struct FDE_TXTEDTPARAMS {
   FDE_TXTEDTPARAMS();
+  ~FDE_TXTEDTPARAMS();
 
   FX_FLOAT fPlateWidth;
   FX_FLOAT fPlateHeight;
   int32_t nLineCount;
   uint32_t dwLayoutStyles;
   uint32_t dwAlignment;
   uint32_t dwMode;
-  CFGAS_GEFont* pFont;
+  CFX_RetainPtr<CFGAS_GEFont> pFont;
   FX_FLOAT fFontSize;
   FX_ARGB dwFontColor;
   FX_FLOAT fLineSpace;
   FX_FLOAT fTabWidth;
   bool bTabEquidistant;
   FX_WCHAR wDefChar;
   FX_WCHAR wLineBreakChar;
   int32_t nCharRotation;
   int32_t nLineEnd;
   int32_t nHorzScale;
@@ skipping 11 matching lines @@
   FDE_TXTEDT_TEXTCHANGE_INFO();
   ~FDE_TXTEDT_TEXTCHANGE_INFO();
 
   int32_t nChangeType;
   CFX_WideString wsInsert;
   CFX_WideString wsDelete;
   CFX_WideString wsPrevText;
 };
 
 #endif  // XFA_FDE_IFDE_TXTEDTENGINE_H_