Fix leaked internal font

xfa/fgas/font/fgas_gefont.h

Index: xfa/fgas/font/fgas_gefont.h
diff --git a/xfa/fgas/font/fgas_gefont.h b/xfa/fgas/font/fgas_gefont.h
index cdb19338a27ededc2fd572f8975d5020cbe2fdeb..3418eb8ee640846de9ba305f372414c244283300 100644
--- a/xfa/fgas/font/fgas_gefont.h
+++ b/xfa/fgas/font/fgas_gefont.h
@@ -24,7 +24,9 @@ class CFGAS_GEFont {
                                 uint32_t dwFontStyles,
                                 uint16_t wCodePage,
                                 IFGAS_FontMgr* pFontMgr);
-  static CFGAS_GEFont* LoadFont(CFX_Font* pExtFont, IFGAS_FontMgr* pFontMgr);
+  static CFGAS_GEFont* LoadFont(CFX_Font* pSrcFont,
+                                bool bExternalFont,

[Lei Zhang, 2016/09/01 22:55:42]

Can we add a separate LoadInternalFont(CFX_Font* pSrcFont, IFGAS_FontMgr*
pFontMgr) method instead of a bool parameter? We can make LoadInternalFont()
take a std::unique_ptr at some point to indicate transfer of ownership.

[Wei Li, 2016/09/01 23:43:30]

Done.

+                                IFGAS_FontMgr* pFontMgr);
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
   static CFGAS_GEFont* LoadFont(const uint8_t* pBuffer,
                                 int32_t iLength,
@@ -74,7 +76,7 @@ class CFGAS_GEFont {
   FX_BOOL LoadFontInternal(const uint8_t* pBuffer, int32_t length);
   FX_BOOL LoadFontInternal(IFX_Stream* pFontStream, FX_BOOL bSaveStream);
 #endif
-  FX_BOOL LoadFontInternal(CFX_Font* pExtFont);
+  FX_BOOL LoadFontInternal(CFX_Font* pFont, bool bExternalFont);
   FX_BOOL InitFont();
   FX_BOOL GetCharBBoxInternal(FX_WCHAR wUnicode,
                               CFX_Rect& bbox,