Added bounds checking to GetNameFromTT to handle corrupt files.

core/include/fxge/fx_font.h

Index: core/include/fxge/fx_font.h
diff --git a/core/include/fxge/fx_font.h b/core/include/fxge/fx_font.h
index 2902145594ada6f6b01c7bdecbbb29901b0fb789..5c125638ba1d47911348756832519f82d292a6a5 100644
--- a/core/include/fxge/fx_font.h
+++ b/core/include/fxge/fx_font.h
@@ -540,7 +540,9 @@ class IFX_GSUBTable {
   virtual ~IFX_GSUBTable() {}
 };
 
-CFX_ByteString GetNameFromTT(const uint8_t* name_table, FX_DWORD name);
+CFX_ByteString GetNameFromTT(const uint8_t* name_table,
+                             FX_DWORD name_table_size,
+                             FX_DWORD name);
 
 int PDF_GetStandardFontName(CFX_ByteString* name);