Fix memory management errors for font loading and copying

core/fxge/include/fx_font.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_FXGE_INCLUDE_FX_FONT_H_
 #define CORE_FXGE_INCLUDE_FX_FONT_H_
 
 #include <memory>
@@ skipping 133 matching lines @@
   static const size_t kAngleSkewArraySize = 30;
   static const char s_AngleSkew[kAngleSkewArraySize];
   static const size_t kWeightPowArraySize = 100;
   static const uint8_t s_WeightPow[kWeightPowArraySize];
   static const uint8_t s_WeightPow_11[kWeightPowArraySize];
   static const uint8_t s_WeightPow_SHIFTJIS[kWeightPowArraySize];
 
 #ifdef PDF_ENABLE_XFA
  protected:
   CFX_BinaryBuf m_OtfFontData;
-  FX_BOOL m_bLogic;
-  void* m_pOwnedStream;
+  bool m_bShallowCopy;
+  FXFT_StreamRec* m_pOwnedStream;
 #endif  // PDF_ENABLE_XFA
 
  private:
   void ReleasePlatformResource();
   void DeleteFace();
 
   FXFT_Face m_Face;
   std::unique_ptr<CFX_SubstFont> m_pSubstFont;
   std::vector<uint8_t> m_pFontDataAllocation;
   uint8_t* m_pFontData;
@@ skipping 49 matching lines @@
                            FX_FLOAT retinaScaleX = 1.0f,
                            FX_FLOAT retinaScaleY = 1.0f);
 
 CFX_ByteString GetNameFromTT(const uint8_t* name_table,
                              uint32_t name_table_size,
                              uint32_t name);
 
 int PDF_GetStandardFontName(CFX_ByteString* name);
 
 #endif  // CORE_FXGE_INCLUDE_FX_FONT_H_