Remove dead code from CPDF_InterForm.

core/fpdfdoc/cpdf_interform.cpp

 // Copyright 2016 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 <vector>
 
 #include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
 #include "core/fpdfapi/fpdf_font/include/cpdf_fontencoding.h"
@@ skipping 78 matching lines @@
       csDA = "/" + PDF_NameEncode(csDefault) + " 0 Tf";
   }
   if (!csDA.IsEmpty())
     csDA += " ";
 
   csDA += "0 g";
   if (!pFormDict->KeyExist("DA"))
     pFormDict->SetStringFor("DA", csDA);
 }
 
-uint32_t CountFonts(CPDF_Dictionary* pFormDict) {
-  if (!pFormDict)
-    return 0;
-
-  CPDF_Dictionary* pDR = pFormDict->GetDictFor("DR");
-  if (!pDR)
-    return 0;
-
-  CPDF_Dictionary* pFonts = pDR->GetDictFor("Font");
-  if (!pFonts)
-    return 0;
-
-  uint32_t dwCount = 0;
-  for (const auto& it : *pFonts) {
-    CPDF_Object* pObj = it.second;
-    if (!pObj)
-      continue;
-
-    if (CPDF_Dictionary* pDirect = ToDictionary(pObj->GetDirect())) {
-      if (pDirect->GetStringFor("Type") == "Font")
-        dwCount++;
-    }
-  }
-  return dwCount;
-}
-
-CPDF_Font* GetFont(CPDF_Dictionary* pFormDict,
-                   CPDF_Document* pDocument,
-                   uint32_t index,
-                   CFX_ByteString& csNameTag) {
-  if (!pFormDict)
-    return nullptr;
-
-  CPDF_Dictionary* pDR = pFormDict->GetDictFor("DR");
-  if (!pDR)
-    return nullptr;
-
-  CPDF_Dictionary* pFonts = pDR->GetDictFor("Font");
-  if (!pFonts)
-    return nullptr;
-
-  uint32_t dwCount = 0;
-  for (const auto& it : *pFonts) {
-    const CFX_ByteString& csKey = it.first;
-    CPDF_Object* pObj = it.second;
-    if (!pObj)
-      continue;
-
-    CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
-    if (!pElement)
-      continue;
-    if (pElement->GetStringFor("Type") != "Font")
-      continue;
-    if (dwCount == index) {
-      csNameTag = csKey;
-      return pDocument->LoadFont(pElement);
-    }
-    dwCount++;
-  }
-  return nullptr;
-}
-
 CPDF_Font* GetFont(CPDF_Dictionary* pFormDict,
                    CPDF_Document* pDocument,
                    CFX_ByteString csNameTag) {
   CFX_ByteString csAlias = PDF_NameDecode(csNameTag);
   if (!pFormDict || csAlias.IsEmpty())
     return nullptr;
 
   CPDF_Dictionary* pDR = pFormDict->GetDictFor("DR");
   if (!pDR)
     return nullptr;
 
   CPDF_Dictionary* pFonts = pDR->GetDictFor("Font");
   if (!pFonts)
     return nullptr;
 
   CPDF_Dictionary* pElement = pFonts->GetDictFor(csAlias);
   if (!pElement)
     return nullptr;
 
   if (pElement->GetStringFor("Type") == "Font")
     return pDocument->LoadFont(pElement);
   return nullptr;
 }
 
-CPDF_Font* GetFont(CPDF_Dictionary* pFormDict,
-                   CPDF_Document* pDocument,
-                   CFX_ByteString csFontName,
-                   CFX_ByteString& csNameTag) {
-  if (!pFormDict || csFontName.IsEmpty())
-    return nullptr;
-
-  CPDF_Dictionary* pDR = pFormDict->GetDictFor("DR");
-  if (!pDR)
-    return nullptr;
-
-  CPDF_Dictionary* pFonts = pDR->GetDictFor("Font");
-  if (!pFonts)
-    return nullptr;
-
-  for (const auto& it : *pFonts) {
-    const CFX_ByteString& csKey = it.first;
-    CPDF_Object* pObj = it.second;
-    if (!pObj)
-      continue;
-
-    CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
-    if (!pElement)
-      continue;
-    if (pElement->GetStringFor("Type") != "Font")
-      continue;
-
-    CPDF_Font* pFind = pDocument->LoadFont(pElement);
-    if (!pFind)
-      continue;
-
-    CFX_ByteString csBaseFont;
-    csBaseFont = pFind->GetBaseFont();
-    csBaseFont.Remove(' ');
-    if (csBaseFont == csFontName) {
-      csNameTag = csKey;
-      return pFind;
-    }
-  }
-  return nullptr;
-}
-
 CPDF_Font* GetNativeFont(CPDF_Dictionary* pFormDict,
                          CPDF_Document* pDocument,
                          uint8_t charSet,
                          CFX_ByteString& csNameTag) {
   if (!pFormDict)
     return nullptr;
 
   CPDF_Dictionary* pDR = pFormDict->GetDictFor("DR");
   if (!pDR)
     return nullptr;
@@ skipping 22 matching lines @@
       continue;
 
     if (pSubst->m_Charset == (int)charSet) {
       csNameTag = csKey;
       return pFind;
     }
   }
   return nullptr;
 }
 
-CPDF_Font* GetDefaultFont(CPDF_Dictionary* pFormDict,
-                          CPDF_Document* pDocument) {
-  if (!pFormDict)
-    return nullptr;
-
-  CPDF_DefaultAppearance cDA(pFormDict->GetStringFor("DA"));
-  CFX_ByteString csFontNameTag;
-  FX_FLOAT fFontSize;
-  cDA.GetFont(csFontNameTag, fFontSize);
-  return GetFont(pFormDict, pDocument, csFontNameTag);
-}
-
 FX_BOOL FindFont(CPDF_Dictionary* pFormDict,
                  const CPDF_Font* pFont,
                  CFX_ByteString& csNameTag) {
   if (!pFormDict || !pFont)
     return FALSE;
 
   CPDF_Dictionary* pDR = pFormDict->GetDictFor("DR");
   if (!pDR)
     return FALSE;
 
@@ skipping 13 matching lines @@
     if (pElement->GetStringFor("Type") != "Font")
       continue;
     if (pFont->GetFontDict() == pElement) {
       csNameTag = csKey;
       return TRUE;
     }
   }
   return FALSE;
 }
 
-CPDF_Font* GetNativeFont(CPDF_Dictionary* pFormDict,
-                         CPDF_Document* pDocument,
-                         CFX_ByteString& csNameTag) {
-  csNameTag.clear();
-  uint8_t charSet = CPDF_InterForm::GetNativeCharSet();
-  CPDF_Font* pFont = GetDefaultFont(pFormDict, pDocument);
-  if (pFont) {
-    CFX_SubstFont* pSubst = pFont->GetSubstFont();
-    if (pSubst && pSubst->m_Charset == (int)charSet) {
-      FindFont(pFormDict, pFont, csNameTag);
-      return pFont;
-    }
-  }
-  return GetNativeFont(pFormDict, pDocument, charSet, csNameTag);
-}
-
 FX_BOOL FindFont(CPDF_Dictionary* pFormDict,
                  CPDF_Document* pDocument,
                  CFX_ByteString csFontName,
                  CPDF_Font*& pFont,
                  CFX_ByteString& csNameTag) {
   if (!pFormDict)
     return FALSE;
 
   CPDF_Dictionary* pDR = pFormDict->GetDictFor("DR");
   if (!pDR)
@@ skipping 75 matching lines @@
                          CFX_ByteString& csNameTag) {
   if (!pFormDict)
     InitDict(pFormDict, pDocument);
 
   CFX_ByteString csTemp;
   CPDF_Font* pFont = GetNativeFont(pFormDict, pDocument, charSet, csTemp);
   if (pFont) {
     csNameTag = csTemp;
     return pFont;
   }
-  CFX_ByteString csFontName = CPDF_InterForm::GetNativeFont(charSet);
+  CFX_ByteString csFontName = CPDF_InterForm::GetNativeFont(charSet, nullptr);
   if (!csFontName.IsEmpty() &&
       FindFont(pFormDict, pDocument, csFontName, pFont, csNameTag)) {
     return pFont;
   }
   pFont = CPDF_InterForm::AddNativeFont(charSet, pDocument);
   if (pFont)
     AddFont(pFormDict, pDocument, pFont, csNameTag);
 
   return pFont;
 }
 
-void RemoveFont(CPDF_Dictionary* pFormDict, const CPDF_Font* pFont) {
-  if (!pFormDict || !pFont)
-    return;
-
-  CFX_ByteString csTag;
-  if (!FindFont(pFormDict, pFont, csTag))
-    return;
-
-  CPDF_Dictionary* pDR = pFormDict->GetDictFor("DR");
-  CPDF_Dictionary* pFonts = pDR->GetDictFor("Font");
-  pFonts->RemoveFor(csTag);
-}
-
-void RemoveFont(CPDF_Dictionary* pFormDict, CFX_ByteString csNameTag) {
-  if (!pFormDict || csNameTag.IsEmpty())
-    return;
-
-  CPDF_Dictionary* pDR = pFormDict->GetDictFor("DR");
-  if (!pDR)
-    return;
-
-  CPDF_Dictionary* pFonts = pDR->GetDictFor("Font");
-  if (!pFonts)
-    return;
-
-  pFonts->RemoveFor(csNameTag);
-}
-
 class CFieldNameExtractor {
  public:
   explicit CFieldNameExtractor(const CFX_WideString& full_name)
       : m_FullName(full_name) {
     m_pCur = m_FullName.c_str();
     m_pEnd = m_pCur + m_FullName.GetLength();
   }
 
   void GetNext(const FX_WCHAR*& pSubName, FX_STRSIZE& size) {
     pSubName = m_pCur;
@@ skipping 69 matching lines @@
         : m_ShortName(short_name), m_pField(pField) {}
     ~Node() {}
 
     void AddChildNode(Node* pNode) { m_Children.push_back(pNode); }
 
     size_t GetChildrenCount() const { return m_Children.size(); }
 
     Node* GetChildAt(size_t i) { return m_Children[i]; }
     const Node* GetChildAt(size_t i) const { return m_Children[i]; }
 
-    CPDF_FormField* GetFieldAtIndex(int index) {
-      int nFieldsToGo = index;
+    CPDF_FormField* GetFieldAtIndex(size_t index) {
+      size_t nFieldsToGo = index;
       return GetFieldInternal(&nFieldsToGo);
     }
 
-    int CountFields() const { return CountFieldsInternal(0); }
+    size_t CountFields() const { return CountFieldsInternal(0); }
 
     void SetField(CPDF_FormField* pField) { m_pField = pField; }
 
     CPDF_FormField* GetField() { return m_pField; }
     const CPDF_FormField* GetField() const { return m_pField; }
 
     const CFX_WideString& GetShortName() const { return m_ShortName; }
 
    private:
-    CPDF_FormField* GetFieldInternal(int* pFieldsToGo) {
+    CPDF_FormField* GetFieldInternal(size_t* pFieldsToGo) {
       if (m_pField) {
         if (*pFieldsToGo == 0)
           return m_pField;
 
         --*pFieldsToGo;
         return nullptr;
       }
       for (size_t i = 0; i < GetChildrenCount(); ++i) {
         CPDF_FormField* pField = GetChildAt(i)->GetFieldInternal(pFieldsToGo);
         if (pField)
           return pField;
       }
       return nullptr;
     }
 
-    int CountFieldsInternal(int nLevel) const {
+    size_t CountFieldsInternal(int nLevel) const {
       if (nLevel > nMaxRecursion)
         return 0;
       if (m_pField)
         return 1;
 
-      int count = 0;
+      size_t count = 0;
       for (size_t i = 0; i < GetChildrenCount(); ++i)
         count += GetChildAt(i)->CountFieldsInternal(nLevel + 1);
       return count;
     }
 
     std::vector<Node*> m_Children;
     CFX_WideString m_ShortName;
     CPDF_FormField* m_pField;
   };
 
@@ skipping 209 matching lines @@
     return;
 
   for (size_t i = 0; i < pFields->GetCount(); i++)
     LoadField(pFields->GetDictAt(i));
 }
 
 CPDF_InterForm::~CPDF_InterForm() {
   for (auto it : m_ControlMap)
     delete it.second;
 
-  int nCount = m_pFieldTree->m_Root.CountFields();
-  for (int i = 0; i < nCount; ++i)
+  size_t nCount = m_pFieldTree->m_Root.CountFields();
+  for (size_t i = 0; i < nCount; ++i)
     delete m_pFieldTree->m_Root.GetFieldAtIndex(i);
 }
 
-FX_BOOL CPDF_InterForm::s_bUpdateAP = TRUE;
+bool CPDF_InterForm::s_bUpdateAP = true;
 
-FX_BOOL CPDF_InterForm::IsUpdateAPEnabled() {
+bool CPDF_InterForm::IsUpdateAPEnabled() {
   return s_bUpdateAP;
 }
 
-void CPDF_InterForm::SetUpdateAP(FX_BOOL bUpdateAP) {
+void CPDF_InterForm::SetUpdateAP(bool bUpdateAP) {
   s_bUpdateAP = bUpdateAP;
 }
 
 CFX_ByteString CPDF_InterForm::GenerateNewResourceName(
     const CPDF_Dictionary* pResDict,
     const FX_CHAR* csType,
     int iMinLen,
     const FX_CHAR* csPrefix) {
   CFX_ByteString csStr = csPrefix;
   CFX_ByteString csBType = csType;
@@ skipping 91 matching lines @@
     if (pLogFont)
       memcpy(pLogFont, &lf, sizeof(LOGFONTA));
 
     csFontName = lf.lfFaceName;
     return csFontName;
   }
 #endif
   return csFontName;
 }
 
-CFX_ByteString CPDF_InterForm::GetNativeFont(void* pLogFont) {
-#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
-  return GetNativeFont(GetNativeCharSet(), pLogFont);
-#else
-  return CFX_ByteString();
-#endif
-}
-
 CPDF_Font* CPDF_InterForm::AddNativeFont(uint8_t charSet,
                                          CPDF_Document* pDocument) {
   if (!pDocument)
     return nullptr;
 
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
   LOGFONTA lf;
   CFX_ByteString csFontName = GetNativeFont(charSet, &lf);
   if (!csFontName.IsEmpty()) {
     if (csFontName == "Helvetica")
@@ skipping 27 matching lines @@
     if (iPos < iLength && !csSub.IsEmpty())
       csSub += L'.';
     while (iPos < iLength && csNewFieldName[iPos] != L'.')
       csSub += csNewFieldName[iPos++];
     for (int i = csSub.GetLength() - 1; i > -1; i--) {
       if (csSub[i] == L' ' || csSub[i] == L'.')
         csSub.SetAt(i, L'\0');
       else
         break;
     }
-    uint32_t dwCount = m_pFieldTree->m_Root.CountFields();
-    for (uint32_t m = 0; m < dwCount; m++) {
+    size_t dwCount = m_pFieldTree->m_Root.CountFields();
+    for (size_t m = 0; m < dwCount; ++m) {
       CPDF_FormField* pField = m_pFieldTree->m_Root.GetFieldAtIndex(m);
       if (!pField)
         continue;
       if (pField == pExcludedField) {
         if (pExcludedControl) {
           if (pField->CountControls() < 2)
             continue;
         } else {
           continue;
         }
@@ skipping 14 matching lines @@
     if (iPos >= iLength)
       break;
   }
   if (csSub.IsEmpty())
     return FALSE;
 
   csNewFieldName = csSub;
   return TRUE;
 }
 
-FX_BOOL CPDF_InterForm::ValidateFieldName(CFX_WideString& csNewFieldName,
-                                          int iType) {
-  return ValidateFieldName(csNewFieldName, iType, nullptr, nullptr);
-}
-
-FX_BOOL CPDF_InterForm::ValidateFieldName(const CPDF_FormField* pField,
-                                          CFX_WideString& csNewFieldName) {
-  return pField && !csNewFieldName.IsEmpty() &&
-         ValidateFieldName(csNewFieldName, pField->GetFieldType(), pField,
-                           nullptr);
-}
-
-FX_BOOL CPDF_InterForm::ValidateFieldName(const CPDF_FormControl* pControl,
-                                          CFX_WideString& csNewFieldName) {
-  if (!pControl || csNewFieldName.IsEmpty())
-    return FALSE;
-
-  CPDF_FormField* pField = pControl->GetField();
-  return ValidateFieldName(csNewFieldName, pField->GetFieldType(), pField,
-                           pControl);
-}
-
-int CPDF_InterForm::CompareFieldName(const CFX_ByteString& name1,
-                                     const CFX_ByteString& name2) {
-  if (name1.GetLength() == name2.GetLength())
-    return name1 == name2 ? 1 : 0;
-
-  const FX_CHAR* ptr1 = name1.c_str();
-  const FX_CHAR* ptr2 = name2.c_str();
-  int i = 0;
-  while (ptr1[i] == ptr2[i])
-    i++;
-  if (i == name1.GetLength())
-    return 2;
-  if (i == name2.GetLength())
-    return 3;
-  return 0;
-}
-
 int CPDF_InterForm::CompareFieldName(const CFX_WideString& name1,
                                      const CFX_WideString& name2) {
   const FX_WCHAR* ptr1 = name1.c_str();
   const FX_WCHAR* ptr2 = name2.c_str();
   if (name1.GetLength() == name2.GetLength())
     return name1 == name2 ? 1 : 0;
 
   int i = 0;
   while (ptr1[i] == ptr2[i])
     i++;
   if (i == name1.GetLength())
     return 2;
   if (i == name2.GetLength())
     return 3;
   return 0;
 }
 
-uint32_t CPDF_InterForm::CountFields(const CFX_WideString& csFieldName) {
+size_t CPDF_InterForm::CountFields(const CFX_WideString& csFieldName) {
   if (csFieldName.IsEmpty())
-    return (uint32_t)m_pFieldTree->m_Root.CountFields();
+    return m_pFieldTree->m_Root.CountFields();
 
   CFieldTree::Node* pNode = m_pFieldTree->FindNode(csFieldName);
   return pNode ? pNode->CountFields() : 0;
 }
 
 CPDF_FormField* CPDF_InterForm::GetField(uint32_t index,
                                          const CFX_WideString& csFieldName) {
   if (csFieldName.IsEmpty())
     return m_pFieldTree->m_Root.GetFieldAtIndex(index);
 
@@ skipping 79 matching lines @@
     return -1;
 
   for (size_t i = 0; i < pArray->GetCount(); i++) {
     CPDF_Object* pElement = pArray->GetDirectObjectAt(i);
     if (pElement == pField->m_pDict)
       return i;
   }
   return -1;
 }
 
-uint32_t CPDF_InterForm::CountFormFonts() {
-  return CountFonts(m_pFormDict);
-}
-
-CPDF_Font* CPDF_InterForm::GetFormFont(uint32_t index,
-                                       CFX_ByteString& csNameTag) {
-  return GetFont(m_pFormDict, m_pDocument, index, csNameTag);
-}
-
 CPDF_Font* CPDF_InterForm::GetFormFont(CFX_ByteString csNameTag) {
   return GetFont(m_pFormDict, m_pDocument, csNameTag);
 }
 
-CPDF_Font* CPDF_InterForm::GetFormFont(CFX_ByteString csFontName,
-                                       CFX_ByteString& csNameTag) {
-  return GetFont(m_pFormDict, m_pDocument, csFontName, csNameTag);
-}
-
-CPDF_Font* CPDF_InterForm::GetNativeFormFont(uint8_t charSet,
-                                             CFX_ByteString& csNameTag) {
-  return ::GetNativeFont(m_pFormDict, m_pDocument, charSet, csNameTag);
-}
-
-CPDF_Font* CPDF_InterForm::GetNativeFormFont(CFX_ByteString& csNameTag) {
-  return ::GetNativeFont(m_pFormDict, m_pDocument, csNameTag);
-}
-
-FX_BOOL CPDF_InterForm::FindFormFont(const CPDF_Font* pFont,
-                                     CFX_ByteString& csNameTag) {
-  return FindFont(m_pFormDict, pFont, csNameTag);
-}
-
 FX_BOOL CPDF_InterForm::FindFormFont(CFX_ByteString csFontName,
                                      CPDF_Font*& pFont,
                                      CFX_ByteString& csNameTag) {
   return FindFont(m_pFormDict, m_pDocument, csFontName, pFont, csNameTag);
 }
 
-void CPDF_InterForm::AddFormFont(const CPDF_Font* pFont,
-                                 CFX_ByteString& csNameTag) {
-  AddFont(m_pFormDict, m_pDocument, pFont, csNameTag);
-}
-
-CPDF_Font* CPDF_InterForm::AddNativeFormFont(uint8_t charSet,
-                                             CFX_ByteString& csNameTag) {
-  return ::AddNativeFont(m_pFormDict, m_pDocument, charSet, csNameTag);
-}
-
-CPDF_Font* CPDF_InterForm::AddNativeFormFont(CFX_ByteString& csNameTag) {
-  return AddNativeInterFormFont(m_pFormDict, m_pDocument, csNameTag);
-}
-
-void CPDF_InterForm::RemoveFormFont(const CPDF_Font* pFont) {
-  RemoveFont(m_pFormDict, pFont);
-}
-
-void CPDF_InterForm::RemoveFormFont(CFX_ByteString csNameTag) {
-  RemoveFont(m_pFormDict, csNameTag);
-}
-
 CPDF_DefaultAppearance CPDF_InterForm::GetDefaultAppearance() {
   if (!m_pFormDict)
     return CPDF_DefaultAppearance();
   return CPDF_DefaultAppearance(m_pFormDict->GetStringFor("DA"));
 }
 
-CPDF_Font* CPDF_InterForm::GetDefaultFormFont() {
-  return GetDefaultFont(m_pFormDict, m_pDocument);
-}
-
 int CPDF_InterForm::GetFormAlignment() {
   return m_pFormDict ? m_pFormDict->GetIntegerFor("Q", 0) : 0;
 }
 
 bool CPDF_InterForm::ResetForm(const std::vector<CPDF_FormField*>& fields,
                                bool bIncludeOrExclude,
                                bool bNotify) {
   if (bNotify && m_pFormNotify && m_pFormNotify->BeforeFormReset(this) < 0)
     return false;
 
-  int nCount = m_pFieldTree->m_Root.CountFields();
-  for (int i = 0; i < nCount; ++i) {
+  size_t nCount = m_pFieldTree->m_Root.CountFields();
+  for (size_t i = 0; i < nCount; ++i) {
     CPDF_FormField* pField = m_pFieldTree->m_Root.GetFieldAtIndex(i);
     if (!pField)
       continue;
 
     if (bIncludeOrExclude == pdfium::ContainsValue(fields, pField))
       pField->ResetField(bNotify);
   }
   if (bNotify && m_pFormNotify)
     m_pFormNotify->AfterFormReset(this);
   return true;
 }
 
 bool CPDF_InterForm::ResetForm(bool bNotify) {
   if (bNotify && m_pFormNotify && m_pFormNotify->BeforeFormReset(this) < 0)
     return false;
 
-  int nCount = m_pFieldTree->m_Root.CountFields();
-  for (int i = 0; i < nCount; ++i) {
+  size_t nCount = m_pFieldTree->m_Root.CountFields();
+  for (size_t i = 0; i < nCount; ++i) {
     CPDF_FormField* pField = m_pFieldTree->m_Root.GetFieldAtIndex(i);
     if (!pField)
       continue;
 
     pField->ResetField(bNotify);
   }
   if (bNotify && m_pFormNotify)
     m_pFormNotify->AfterFormReset(this);
   return true;
 }
@@ skipping 120 matching lines @@
 
   CPDF_FormControl* pControl = new CPDF_FormControl(pField, pWidgetDict);
   m_ControlMap[pWidgetDict] = pControl;
   pField->m_ControlList.Add(pControl);
   return pControl;
 }
 
 CPDF_FormField* CPDF_InterForm::CheckRequiredFields(
     const std::vector<CPDF_FormField*>* fields,
     bool bIncludeOrExclude) const {
-  int nCount = m_pFieldTree->m_Root.CountFields();
-  for (int i = 0; i < nCount; ++i) {
+  size_t nCount = m_pFieldTree->m_Root.CountFields();
+  for (size_t i = 0; i < nCount; ++i) {
     CPDF_FormField* pField = m_pFieldTree->m_Root.GetFieldAtIndex(i);
     if (!pField)
       continue;
 
     int32_t iType = pField->GetType();
     if (iType == CPDF_FormField::PushButton ||
         iType == CPDF_FormField::CheckBox || iType == CPDF_FormField::ListBox) {
       continue;
     }
     uint32_t dwFlags = pField->GetFieldFlags();
     // TODO(thestig): Look up these magic numbers and add constants for them.
     if (dwFlags & 0x04)
       continue;
 
     bool bFind = true;
     if (fields)
       bFind = pdfium::ContainsValue(*fields, pField);
     if (bIncludeOrExclude == bFind) {
       CPDF_Dictionary* pFieldDict = pField->m_pDict;
       if ((dwFlags & 0x02) != 0 && pFieldDict->GetStringFor("V").IsEmpty())
         return pField;
     }
   }
   return nullptr;
 }
 
 CFDF_Document* CPDF_InterForm::ExportToFDF(const CFX_WideStringC& pdf_path,
                                            bool bSimpleFileSpec) const {
   std::vector<CPDF_FormField*> fields;
-  int nCount = m_pFieldTree->m_Root.CountFields();
-  for (int i = 0; i < nCount; ++i)
+  size_t nCount = m_pFieldTree->m_Root.CountFields();
+  for (size_t i = 0; i < nCount; ++i)
     fields.push_back(m_pFieldTree->m_Root.GetFieldAtIndex(i));
   return ExportToFDF(pdf_path, fields, true, bSimpleFileSpec);
 }
 
 CFDF_Document* CPDF_InterForm::ExportToFDF(
     const CFX_WideStringC& pdf_path,
     const std::vector<CPDF_FormField*>& fields,
     bool bIncludeOrExclude,
     bool bSimpleFileSpec) const {
   CFDF_Document* pDoc = CFDF_Document::CreateNewDoc();
   if (!pDoc)
     return nullptr;
 
   CPDF_Dictionary* pMainDict = pDoc->GetRoot()->GetDictFor("FDF");
   if (!pdf_path.IsEmpty()) {
     if (bSimpleFileSpec) {
       CFX_WideString wsFilePath = CPDF_FileSpec::EncodeFileName(pdf_path);
       pMainDict->SetStringFor("F", CFX_ByteString::FromUnicode(wsFilePath));
       pMainDict->SetStringFor("UF", PDF_EncodeText(wsFilePath));
     } else {
       CPDF_FileSpec filespec;
       filespec.SetFileName(pdf_path);
       pMainDict->SetFor("F", filespec.GetObj());
     }
   }
 
   CPDF_Array* pFields = new CPDF_Array;
   pMainDict->SetFor("Fields", pFields);
-  int nCount = m_pFieldTree->m_Root.CountFields();
-  for (int i = 0; i < nCount; i++) {
+  size_t nCount = m_pFieldTree->m_Root.CountFields();
+  for (size_t i = 0; i < nCount; ++i) {
     CPDF_FormField* pField = m_pFieldTree->m_Root.GetFieldAtIndex(i);
     if (!pField || pField->GetType() == CPDF_FormField::PushButton)
       continue;
 
     uint32_t dwFlags = pField->GetFieldFlags();
     if (dwFlags & 0x04)
       continue;
 
     if (bIncludeOrExclude == pdfium::ContainsValue(fields, pField)) {
       if ((dwFlags & 0x02) != 0 && pField->m_pDict->GetStringFor("V").IsEmpty())
@@ skipping 73 matching lines @@
   if (bNotify && m_pFormNotify) {
     if (iType == FIELDTYPE_CHECKBOX || iType == FIELDTYPE_RADIOBUTTON)
       m_pFormNotify->AfterCheckedStatusChange(pField);
     else if (iType == FIELDTYPE_LISTBOX)
       m_pFormNotify->AfterSelectionChange(pField);
     else if (iType == FIELDTYPE_COMBOBOX || iType == FIELDTYPE_TEXTFIELD)
       m_pFormNotify->AfterValueChange(pField);
   }
 }
 
-FX_BOOL CPDF_InterForm::ImportFromFDF(const CFDF_Document* pFDF,
-                                      FX_BOOL bNotify) {
-  if (!pFDF)
-    return FALSE;
-
-  CPDF_Dictionary* pMainDict = pFDF->GetRoot()->GetDictFor("FDF");
-  if (!pMainDict)
-    return FALSE;
-
-  CPDF_Array* pFields = pMainDict->GetArrayFor("Fields");
-  if (!pFields)
-    return FALSE;
-
-  m_bsEncoding = pMainDict->GetStringFor("Encoding");
-  if (bNotify && m_pFormNotify && m_pFormNotify->BeforeFormImportData(this) < 0)
-    return FALSE;
-
-  for (size_t i = 0; i < pFields->GetCount(); i++) {
-    CPDF_Dictionary* pField = pFields->GetDictAt(i);
-    if (!pField)
-      continue;
-
-    FDF_ImportField(pField, L"", bNotify);
-  }
-  if (bNotify && m_pFormNotify)
-    m_pFormNotify->AfterFormImportData(this);
-  return TRUE;
-}
-
 void CPDF_InterForm::SetFormNotify(IPDF_FormNotify* pNotify) {
   m_pFormNotify = pNotify;
 }