Get rid of FX_LPCSTR cast.

core/src/fpdfapi/fpdf_edit/fpdf_edit_create.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/fpdfapi/fpdf_serial.h"
 #include "editint.h"
 #define PDF_OBJECTSTREAM_MAXLENGTH      (256 * 1024)
 #define PDF_XREFSTREAM_MAXSIZE          10000
@@ skipping 1089 matching lines @@
                 FX_BOOL bHex = ((CPDF_String*)pObj)->IsHex();
                 if (m_pCryptoHandler == NULL || !bEncrypt) {
                     CFX_ByteString content = PDF_EncodeString(str, bHex);
                     if ((len = m_File.AppendString(content)) < 0) {
                         return -1;
                     }
                     m_Offset += len;
                     break;
                 }
                 CPDF_Encryptor encryptor;
-                encryptor.Initialize(m_pCryptoHandler, objnum, (FX_LPBYTE)(FX_LPCSTR)str, str.GetLength());
+                encryptor.Initialize(m_pCryptoHandler, objnum, (FX_LPBYTE)str.c_str(), str.GetLength());
                 CFX_ByteString content = PDF_EncodeString(CFX_ByteString((FX_LPCSTR)encryptor.m_pData, encryptor.m_dwSize), bHex);
                 if ((len = m_File.AppendString(content)) < 0) {
                     return -1;
                 }
                 m_Offset += len;
                 break;
             }
         case PDFOBJ_STREAM: {
                 CPDF_FlateEncoder encoder;
                 encoder.Initialize((CPDF_Stream*)pObj, m_bCompress);
@@ skipping 537 matching lines @@
             }
             j = i;
             while (j <= dwLastObjNum && m_ObjectOffset.GetPtrAt(j)) {
                 j++;
             }
             if (i == 1) {
                 str.Format("0 %d\r\n0000000000 65536 f\r\n", j);
             } else {
                 str.Format("%d %d\r\n", i, j - i);
             }
-            if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
+            if (m_File.AppendBlock(str.c_str(), str.GetLength()) < 0) {
                 return -1;
             }
             while (i < j) {
                 str.Format("%010d 00000 n\r\n", m_ObjectOffset[i ++]);
-                if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
+                if (m_File.AppendBlock(str.c_str(), str.GetLength()) < 0) {
                     return -1;
                 }
             }
             if (i > dwLastObjNum) {
                 break;
             }
             if (pPause && pPause->NeedToPauseNow()) {
                 m_Pos = (FX_LPVOID)(FX_UINTPTR)i;
                 return 1;
             }
@@ skipping 16 matching lines @@
                     break;
                 }
                 objnum = dwCurrent;
             }
             objnum = m_NewObjNumArray.ElementAt(i);
             if (objnum == 1) {
                 str.Format("0 %d\r\n0000000000 65536 f\r\n", j - i + 1);
             } else {
                 str.Format("%d %d\r\n", objnum, j - i);
             }
-            if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
+            if (m_File.AppendBlock(str.c_str(), str.GetLength()) < 0) {
                 return -1;
             }
             while (i < j) {
                 objnum = m_NewObjNumArray.ElementAt(i++);
                 str.Format("%010d 00000 n\r\n", m_ObjectOffset[objnum]);
-                if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
+                if (m_File.AppendBlock(str.c_str(), str.GetLength()) < 0) {
                     return -1;
                 }
             }
             if (pPause && (i % 100) == 0 && pPause->NeedToPauseNow()) {
                 m_Pos = (FX_LPVOID)(FX_UINTPTR)i;
                 return 1;
             }
         }
         m_iStage = 90;
     }
@@ skipping 403 matching lines @@
     m_bNewCrypto = FALSE;
     if (!m_bStandardSecurity) {
         return;
     }
     if (m_pEncryptDict) {
         m_pEncryptDict->Release();
         m_pEncryptDict = NULL;
     }
     m_bStandardSecurity = FALSE;
 }