Re-enable MSVC warning 4702

fpdfsdk/fpdfxfa/fpdfxfa_doc.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/cpdf_array.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h"
 #include "core/fpdfapi/fpdf_parser/include/cpdf_string.h"
@@ skipping 126 matching lines @@
     case DOCTYPE_PDF:
     case DOCTYPE_STATIC_XFA:
       if (m_pPDFDoc)
         return m_pPDFDoc->GetPageCount();
     case DOCTYPE_DYNAMIC_XFA:
       if (m_pXFADoc)
         return m_pXFADocView->CountPageViews();
     default:
       return 0;
   }
-
-  return 0;
 }
 
 CPDFXFA_Page* CPDFXFA_Document::GetPage(int page_index) {
   if (page_index < 0)
     return nullptr;
   CPDFXFA_Page* pPage = nullptr;
   int nCount = m_XFAPageList.GetSize();
   if (nCount > 0 && page_index < nCount) {
     pPage = m_XFAPageList.GetAt(page_index);
     if (pPage)
@@ skipping 1121 matching lines @@
   }
 
   return _GetHValueByName(szPropName, hValue,
                           m_pSDKDoc->GetEnv()->GetJSRuntime());
 }
 FX_BOOL CPDFXFA_Document::_GetHValueByName(const CFX_ByteStringC& utf8Name,
                                            FXJSE_HVALUE hValue,
                                            IJS_Runtime* runTime) {
   return runTime->GetHValueByName(utf8Name, hValue);
 }