Remove CFX_MapPtrToPtr in xfa/fgas, part 2

xfa/fgas/font/cfgas_gefont.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_FGAS_FONT_CFGAS_GEFONT_H_
 #define XFA_FGAS_FONT_CFGAS_GEFONT_H_
 
 #include <map>
@@ skipping 91 matching lines @@
 #endif
   CFX_Font* m_pFont;
   CFX_RetainPtr<CFGAS_GEFont> m_pSrcFont;  // Only set by ctor, so no cycles.
   CFGAS_FontMgr* const m_pFontMgr;
   bool m_bExternalFont;
   CFX_RetainPtr<IFGAS_Stream> m_pStream;
   CFX_RetainPtr<IFX_SeekableReadStream> m_pFileRead;
   std::unique_ptr<CFX_UnicodeEncoding> m_pFontEncoding;
   std::unique_ptr<CFX_DiscreteArrayTemplate<uint16_t>> m_pCharWidthMap;
   std::unique_ptr<CFX_MassArrayTemplate<CFX_Rect>> m_pRectArray;
-  std::unique_ptr<CFX_MapPtrToPtr> m_pBBoxMap;
+  std::map<FX_WCHAR, CFX_Rect*> m_BBoxMap;
   CXFA_PDFFontMgr* m_pProvider;  // not owned.
   std::vector<CFX_RetainPtr<CFGAS_GEFont>> m_SubstFonts;
   std::map<FX_WCHAR, CFX_RetainPtr<CFGAS_GEFont>> m_FontMapper;
 };
 
 #endif  // XFA_FGAS_FONT_CFGAS_GEFONT_H_