Move function prototypes to new doc_utils.h file

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 "../../include/fpdfdoc/fpdf_doc.h"
-CFX_WideString          GetFullName(CPDF_Dictionary* pFieldDict);
-void                            SaveCheckedFieldStatus(CPDF_FormField* pField, CFX_ByteArray& statusArray);
+#include "doc_utils.h"
+
 FX_BOOL PDF_FormField_IsUnison(CPDF_FormField *pField)
 {
     FX_BOOL bUnison = FALSE;
     if (pField->GetType() == CPDF_FormField::CheckBox) {
         bUnison = TRUE;
     } else {
         FX_DWORD dwFlags = pField->GetFieldFlags();
         bUnison = ((dwFlags & 0x2000000) != 0);
     }
     return bUnison;
@@ skipping 1076 matching lines @@
     if (m_pForm->m_pFormDict && m_pForm->m_pFormDict->GetDict("DR") &&
         m_pForm->m_pFormDict->GetDict("DR")->GetDict("Font") )
     pFontDict = m_pForm->m_pFormDict->GetDict("DR")->GetDict("Font")->GetDict(font_name);
 
     if (pFontDict == NULL) {
         return;
     }
     m_pFont = m_pForm->m_pDocument->LoadFont(pFontDict);
     m_FontSize = FX_atof(syntax.GetWord());
 }