Re-enable several MSVC warnings

fpdfsdk/fxedit/fxet_ap.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 "core/fpdfapi/fpdf_parser/include/fpdf_parser_decode.h"
 #include "core/include/fpdfapi/fpdf_resource.h"
 #include "fpdfsdk/include/fxedit/fx_edit.h"
 #include "fpdfsdk/include/fxedit/fxet_edit.h"
 
 CFX_ByteString GetPDFWordString(IFX_Edit_FontMap* pFontMap,
                                 int32_t nFontIndex,
                                 FX_WORD Word,
                                 FX_WORD SubWord) {
   CFX_ByteString sWord;
   if (CPDF_Font* pPDFFont = pFontMap->GetPDFFont(nFontIndex)) {
     if (SubWord > 0) {
       Word = SubWord;
     } else {
-      FX_DWORD dwCharCode = -1;
+      FX_DWORD dwCharCode = 0;

[Tom Sepez, 2016/03/16 18:35:00]

Init shouldn't be required given lines 23-26

[Wei Li, 2016/03/17 02:24:06]

Acknowledged.

[Tom Sepez, 2016/03/16 18:35:00]

nit: no blank line here.

[Wei Li, 2016/03/17 02:24:06]

Acknowledged.

       if (pPDFFont->IsUnicodeCompatible())
         dwCharCode = pPDFFont->CharCodeFromUnicode(Word);
       else
         dwCharCode = pFontMap->CharCodeFromUnicode(nFontIndex, Word);
 
       if (dwCharCode > 0) {
         pPDFFont->AppendChar(sWord, dwCharCode);
         return sWord;
       }
     }
@@ skipping 164 matching lines @@
           sRet << word.ptWord.x + ptOffset.x << " "
                << line.ptLine.y + line.fLineDescent << " " << word.fWidth << " "
                << line.fLineAscent - line.fLineDescent << " re\nf\n";
         }
       }
     }
   }
 
   return sRet.GetByteString();
 }