Fix return check in CFX_FolderFontInfo::ScanFile() fread.

core/src/fxge/ge/fx_ge_fontmap.cpp

 // 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
 
 #include <limits>
 
 #include "../../../include/fxge/fx_ge.h"
 #include "../../../include/fxge/fx_freetype.h"
@@ skipping 1349 matching lines @@
     }
 
     if (GET_TT_LONG(buffer) == 0x74746366) {
         FX_DWORD nFaces = GET_TT_LONG(buffer + 8);
         if (nFaces > std::numeric_limits<FX_DWORD>::max() / 4) {
             FXSYS_fclose(pFile);
             return;
         }
         FX_DWORD face_bytes = nFaces * 4;
         uint8_t* offsets = FX_Alloc(uint8_t, face_bytes);
-        readCnt = FXSYS_fread(offsets, face_bytes, 1, pFile);
+        readCnt = FXSYS_fread(offsets, 1, face_bytes, pFile);
         if (readCnt != face_bytes) {
             FX_Free(offsets);
             FXSYS_fclose(pFile);
             return;
         }
         for (FX_DWORD i = 0; i < nFaces; i ++) {
             uint8_t* p = offsets + i * 4;
             ReportFace(path, pFile, filesize, GET_TT_LONG(p));
         }
         FX_Free(offsets);
@@ skipping 131 matching lines @@
         return FALSE;
     }
     CFontFaceInfo* pFont = (CFontFaceInfo*)hFont;
     name = pFont->m_FaceName;
     return TRUE;
 }
 FX_BOOL CFX_FolderFontInfo::GetFontCharset(void* hFont, int& charset)
 {
     return FALSE;
 }