Get rid of FX_LPCSTR cast.

core/src/fpdfdoc/doc_form.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 "../../include/fpdfdoc/fpdf_doc.h"
 #include "../../include/fxcrt/fx_xml.h"
 CFX_WideString  GetFullName(CPDF_Dictionary* pFieldDict);
 void                    InitInterFormDict(CPDF_Dictionary*& pFormDict, CPDF_Document* pDocument);
@@ skipping 428 matching lines @@
 }
 CPDF_Font* CPDF_InterForm::AddSystemFont(const CPDF_Document* pDocument, CFX_ByteString csFontName, FX_BYTE iCharSet)
 {
     if (pDocument == NULL || csFontName.IsEmpty()) {
         return NULL;
     }
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
     if (iCharSet == 1) {
         iCharSet = GetNativeCharSet();
     }
-    HFONT hFont = ::CreateFontA(0, 0, 0, 0, 0, 0, 0, 0, iCharSet, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, (FX_LPCSTR)csFontName);
+    HFONT hFont = ::CreateFontA(0, 0, 0, 0, 0, 0, 0, 0, iCharSet, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, csFontName.c_str());
     if (hFont != NULL) {
         LOGFONTA lf;
         memset(&lf, 0, sizeof(LOGFONTA));
         ::GetObjectA(hFont, sizeof(LOGFONTA), &lf);
         ::DeleteObject(hFont);
         if (strlen(lf.lfFaceName) > 0) {
             return ((CPDF_Document*)pDocument)->AddWindowsFont(&lf, FALSE, TRUE);
         }
     }
 #endif
@@ skipping 1195 matching lines @@
                 continue;
             }
             CPDF_FormControl* pControl = NULL;
             if (m_ControlMap.Lookup(pAnnotDict, (void*&)pControl)) {
                 return iNewPage;
             }
         }
     } while (TRUE);
     return -1;
 }