Re-enable MSVC warning 4800 for compiling with chromium_code

core/src/fpdfdoc/doc_formfield.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/include/fpdfapi/cfdf_document.h"
 #include "core/include/fpdfapi/cpdf_array.h"
 #include "core/include/fpdfapi/cpdf_document.h"
 #include "core/include/fpdfapi/cpdf_number.h"
@@ skipping 92 matching lines @@
 }
 CFX_WideString CPDF_FormField::GetFullName() {
   return ::GetFullName(m_pDict);
 }
 FX_BOOL CPDF_FormField::ResetField(FX_BOOL bNotify) {
   switch (m_Type) {
     case CPDF_FormField::CheckBox:
     case CPDF_FormField::RadioButton: {
       int iCount = CountControls();
       if (iCount) {
+        // TODO(weili): Check whether anything special needs to be done for
+        // unison field. Otherwise, merge these branches.
         if (PDF_FormField_IsUnison(this)) {
           for (int i = 0; i < iCount; i++) {
             CheckControl(i, GetControl(i)->IsDefaultChecked(), FALSE);
           }
         } else {
           for (int i = 0; i < iCount; i++) {
-            CPDF_FormControl* pControl = GetControl(i);
-            FX_BOOL bChecked = pControl->IsDefaultChecked();
-            CheckControl(i, bChecked, FALSE);
+            CheckControl(i, GetControl(i)->IsDefaultChecked(), FALSE);
           }
         }
       }
       if (bNotify && m_pForm->m_pFormNotify) {
         m_pForm->m_pFormNotify->AfterCheckedStatusChange(this);
       }
     } break;
     case CPDF_FormField::ComboBox: {
       CFX_WideString csValue;
       ClearSelection();
@@ skipping 956 matching lines @@
     pFontDict = m_pForm->m_pFormDict->GetDictBy("DR")
                     ->GetDictBy("Font")
                     ->GetDictBy(font_name);
 
   if (!pFontDict) {
     return;
   }
   m_pFont = m_pForm->m_pDocument->LoadFont(pFontDict);
   m_FontSize = FX_atof(syntax.GetWord());
 }