diff --git a/core/fpdfdoc/cpdf_action.cpp b/core/fpdfdoc/cpdf_action.cpp
index ed5f46b..2d2ff03 100644
--- a/core/fpdfdoc/cpdf_action.cpp
+++ b/core/fpdfdoc/cpdf_action.cpp
@@ -80,7 +80,7 @@
   if (!pWinDict)
     return WideString();
 
-  return WideString::FromLocal(
+  return WideString::FromDefANSI(
       pWinDict->GetStringFor(pdfium::stream::kF).AsStringView());
 }
 
diff --git a/core/fpdfdoc/cpdf_filespec.cpp b/core/fpdfdoc/cpdf_filespec.cpp
index aa93b91..402f064 100644
--- a/core/fpdfdoc/cpdf_filespec.cpp
+++ b/core/fpdfdoc/cpdf_filespec.cpp
@@ -100,7 +100,7 @@
   if (const CPDF_Dictionary* pDict = m_pObj->AsDictionary()) {
     csFileName = pDict->GetUnicodeTextFor("UF");
     if (csFileName.IsEmpty()) {
-      csFileName = WideString::FromLocal(
+      csFileName = WideString::FromDefANSI(
           pDict->GetStringFor(pdfium::stream::kF).AsStringView());
     }
     if (pDict->GetStringFor("FS") == "URL")
@@ -111,13 +111,13 @@
       for (const auto* key : keys) {
         if (pDict->KeyExist(key)) {
           csFileName =
-              WideString::FromLocal(pDict->GetStringFor(key).AsStringView());
+              WideString::FromDefANSI(pDict->GetStringFor(key).AsStringView());
           break;
         }
       }
     }
   } else if (m_pObj->IsString()) {
-    csFileName = WideString::FromLocal(m_pObj->GetString().AsStringView());
+    csFileName = WideString::FromDefANSI(m_pObj->GetString().AsStringView());
   }
   return DecodeFileName(csFileName);
 }
diff --git a/core/fxcrt/widestring.cpp b/core/fxcrt/widestring.cpp
index 146de3a..55bb83b 100644
--- a/core/fxcrt/widestring.cpp
+++ b/core/fxcrt/widestring.cpp
@@ -864,7 +864,7 @@
 }
 
 // static
-WideString WideString::FromLocal(const ByteStringView& bstr) {
+WideString WideString::FromDefANSI(const ByteStringView& bstr) {
   int src_len = bstr.GetLength();
   int dest_len = FXSYS_MultiByteToWideChar(
       FX_CODEPAGE_DefANSI, 0, bstr.unterminated_c_str(), src_len, nullptr, 0);
diff --git a/core/fxcrt/widestring.h b/core/fxcrt/widestring.h
index 799eb98..3c81093 100644
--- a/core/fxcrt/widestring.h
+++ b/core/fxcrt/widestring.h
@@ -60,7 +60,7 @@
 
   ~WideString();
 
-  static WideString FromLocal(const ByteStringView& str) WARN_UNUSED_RESULT;
+  static WideString FromDefANSI(const ByteStringView& str) WARN_UNUSED_RESULT;
   static WideString FromUTF8(const ByteStringView& str) WARN_UNUSED_RESULT;
   static WideString FromUTF16LE(const unsigned short* str,
                                 size_t len) WARN_UNUSED_RESULT;
diff --git a/core/fxcrt/widestring_unittest.cpp b/core/fxcrt/widestring_unittest.cpp
index 0d20d71..601e287 100644
--- a/core/fxcrt/widestring_unittest.cpp
+++ b/core/fxcrt/widestring_unittest.cpp
@@ -1028,7 +1028,7 @@
 }
 
 TEST(WideString, FromLocal) {
-  EXPECT_EQ(L"", WideString::FromLocal(ByteStringView()));
+  EXPECT_EQ(L"", WideString::FromDefANSI(ByteStringView()));
 #if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
   const wchar_t* kResult =
       L"x"
@@ -1042,10 +1042,10 @@
       L"\u00ff"
       L"y";
 #endif
-  EXPECT_EQ(kResult, WideString::FromLocal("x"
-                                           "\x80"
-                                           "\xff"
-                                           "y"));
+  EXPECT_EQ(kResult, WideString::FromDefANSI("x"
+                                             "\x80"
+                                             "\xff"
+                                             "y"));
 }
 
 TEST(WideStringView, FromVector) {
diff --git a/core/fxge/win32/fx_win32_device.cpp b/core/fxge/win32/fx_win32_device.cpp
index 55c385c..4b77cdc 100644
--- a/core/fxge/win32/fx_win32_device.cpp
+++ b/core/fxge/win32/fx_win32_device.cpp
@@ -589,7 +589,7 @@
   if (face.EqualNoCase(facebuf))
     return hFont;
 
-  WideString wsFace = WideString::FromLocal(facebuf);
+  WideString wsFace = WideString::FromDefANSI(facebuf);
   for (size_t i = 0; i < FX_ArraySize(g_VariantNames); ++i) {
     if (face != g_VariantNames[i].m_pFaceName)
       continue;
diff --git a/core/fxge/win32/fx_win32_dib.cpp b/core/fxge/win32/fx_win32_dib.cpp
index 23cc633..1a7cd45 100644
--- a/core/fxge/win32/fx_win32_dib.cpp
+++ b/core/fxge/win32/fx_win32_dib.cpp
@@ -152,7 +152,7 @@
 }
 
 RetainPtr<CFX_DIBitmap> CFX_WindowsDIB::LoadFromFile(const char* filename) {
-  return LoadFromFile(WideString::FromLocal(filename).c_str());
+  return LoadFromFile(WideString::FromDefANSI(filename).c_str());
 }
 
 RetainPtr<CFX_DIBitmap> CFX_WindowsDIB::LoadDIBitmap(WINDIB_Open_Args_ args) {
diff --git a/fpdfsdk/cpdfsdk_formfillenvironment.cpp b/fpdfsdk/cpdfsdk_formfillenvironment.cpp
index 4cfb767..9e8f4bf 100644
--- a/fpdfsdk/cpdfsdk_formfillenvironment.cpp
+++ b/fpdfsdk/cpdfsdk_formfillenvironment.cpp
@@ -125,7 +125,7 @@
     return WideString();
 
   pBuff.resize(nActualLen);
-  return WideString::FromLocal(ByteStringView(pBuff));
+  return WideString::FromDefANSI(ByteStringView(pBuff));
 }
 
 void CPDFSDK_FormFillEnvironment::JS_docmailForm(void* mailData,
@@ -194,7 +194,7 @@
     return WideString();
 
   pBuff.resize(nActualLen);
-  return WideString::FromLocal(ByteStringView(pBuff));
+  return WideString::FromDefANSI(ByteStringView(pBuff));
 }
 
 void CPDFSDK_FormFillEnvironment::JS_docSubmitForm(void* formData,
diff --git a/fpdfsdk/fpdfxfa/cpdfxfa_docenvironment.cpp b/fpdfsdk/fpdfxfa/cpdfxfa_docenvironment.cpp
index cbb8764..c781ba1 100644
--- a/fpdfsdk/fpdfxfa/cpdfxfa_docenvironment.cpp
+++ b/fpdfsdk/fpdfxfa/cpdfxfa_docenvironment.cpp
@@ -401,7 +401,7 @@
     return;
 
   ByteString csTitle = pInfoDict->GetStringFor("Title");
-  wsTitle = WideString::FromLocal(csTitle.AsStringView());
+  wsTitle = WideString::FromDefANSI(csTitle.AsStringView());
 }
 
 void CPDFXFA_DocEnvironment::SetTitle(CXFA_FFDoc* hDoc,
@@ -644,7 +644,7 @@
       if (!pFormFillEnv)
         return false;
 
-      pFormFillEnv->JS_appAlert(WideString::FromLocal(IDS_XFA_Validate_Input),
+      pFormFillEnv->JS_appAlert(WideString::FromDefANSI(IDS_XFA_Validate_Input),
                                 L"", JSPLATFORM_ALERT_BUTTON_OK,
                                 JSPLATFORM_ALERT_ICON_WARNING);
       return false;
@@ -899,7 +899,7 @@
 
   WideString csURL = submit->GetSubmitTarget();
   if (csURL.IsEmpty()) {
-    pFormFillEnv->JS_appAlert(WideString::FromLocal("Submit cancelled."), L"",
+    pFormFillEnv->JS_appAlert(WideString::FromDefANSI("Submit cancelled."), L"",
                               JSPLATFORM_ALERT_BUTTON_OK,
                               JSPLATFORM_ALERT_ICON_ASTERISK);
     return false;
@@ -912,7 +912,7 @@
       WideString csContent = submit->GetSubmitXDPContent();
       csContent.Trim();
 
-      WideString space = WideString::FromLocal(" ");
+      WideString space = WideString::FromDefANSI(" ");
       csContent = space + csContent + space;
       FPDF_DWORD flag = 0;
       if (submit->IsSubmitEmbedPDF())
diff --git a/fxbarcode/BC_UtilCodingConvert.cpp b/fxbarcode/BC_UtilCodingConvert.cpp
index 96aeadd..f367c21 100644
--- a/fxbarcode/BC_UtilCodingConvert.cpp
+++ b/fxbarcode/BC_UtilCodingConvert.cpp
@@ -17,13 +17,13 @@
 
 void CBC_UtilCodingConvert::LocaleToUtf8(const ByteString& src,
                                          ByteString& dst) {
-  WideString unicode = WideString::FromLocal(src.AsStringView());
+  WideString unicode = WideString::FromDefANSI(src.AsStringView());
   dst = unicode.UTF8Encode();
 }
 
 void CBC_UtilCodingConvert::LocaleToUtf8(const ByteString& src,
                                          std::vector<uint8_t>& dst) {
-  WideString unicode = WideString::FromLocal(src.AsStringView());
+  WideString unicode = WideString::FromDefANSI(src.AsStringView());
   ByteString utf8 = unicode.UTF8Encode();
   dst = std::vector<uint8_t>(utf8.begin(), utf8.end());
 }
diff --git a/fxjs/cjs_annot.cpp b/fxjs/cjs_annot.cpp
index 7b0dee6..e23e4eb 100644
--- a/fxjs/cjs_annot.cpp
+++ b/fxjs/cjs_annot.cpp
@@ -103,7 +103,7 @@
     return CJS_Result::Failure(JSMessage::kBadObjectError);
 
   return CJS_Result::Success(pRuntime->NewString(
-      WideString::FromLocal(
+      WideString::FromDefANSI(
           CPDF_Annot::AnnotSubtypeToString(pBAAnnot->GetAnnotSubtype())
               .AsStringView())
           .AsStringView()));
diff --git a/fxjs/cjs_field.cpp b/fxjs/cjs_field.cpp
index 2b68f47..4e00b70 100644
--- a/fxjs/cjs_field.cpp
+++ b/fxjs/cjs_field.cpp
@@ -1892,7 +1892,7 @@
       break;
   }
   return CJS_Result::Success(pRuntime->NewString(
-      WideString::FromLocal(csBCaption.AsStringView()).AsStringView()));
+      WideString::FromDefANSI(csBCaption.AsStringView()).AsStringView()));
 }
 
 CJS_Result CJS_Field::set_style(CJS_Runtime* pRuntime,
@@ -1978,7 +1978,7 @@
     return CJS_Result::Failure(JSMessage::kBadObjectError);
 
   return CJS_Result::Success(pRuntime->NewString(
-      WideString::FromLocal(pFont->GetBaseFont().AsStringView())
+      WideString::FromDefANSI(pFont->GetBaseFont().AsStringView())
           .AsStringView()));
 }
 
diff --git a/fxjs/cjs_global.cpp b/fxjs/cjs_global.cpp
index 6589f70..176872f 100644
--- a/fxjs/cjs_global.cpp
+++ b/fxjs/cjs_global.cpp
@@ -254,7 +254,7 @@
       return CJS_Result::Success(pRuntime->NewBoolean(pData->bData));
     case CFX_Value::DataType::STRING:
       return CJS_Result::Success(pRuntime->NewString(
-          WideString::FromLocal(pData->sData.AsStringView()).AsStringView()));
+          WideString::FromDefANSI(pData->sData.AsStringView()).AsStringView()));
     case CFX_Value::DataType::OBJECT:
       return CJS_Result::Success(
           v8::Local<v8::Object>::New(pRuntime->GetIsolate(), pData->pData));
diff --git a/fxjs/cjs_publicmethods.cpp b/fxjs/cjs_publicmethods.cpp
index ac5163d..529ca53 100644
--- a/fxjs/cjs_publicmethods.cpp
+++ b/fxjs/cjs_publicmethods.cpp
@@ -634,7 +634,7 @@
   }
 
   // Processing currency string
-  Value = WideString::FromLocal(strValue.AsStringView());
+  Value = WideString::FromDefANSI(strValue.AsStringView());
   if (bCurrencyPrepend)
     Value = wstrCurrency + Value;
   else
@@ -845,7 +845,7 @@
     strValue.InsertAtFront('-');
 
   strValue += '%';
-  Value = WideString::FromLocal(strValue.AsStringView());
+  Value = WideString::FromDefANSI(strValue.AsStringView());
 #endif
   return CJS_Result::Success();
 }
diff --git a/fxjs/js_resources.cpp b/fxjs/js_resources.cpp
index 05b5b37..8e891a0 100644
--- a/fxjs/js_resources.cpp
+++ b/fxjs/js_resources.cpp
@@ -67,10 +67,10 @@
 WideString JSFormatErrorString(const char* class_name,
                                const char* property_name,
                                const WideString& details) {
-  WideString result = WideString::FromLocal(class_name);
+  WideString result = WideString::FromDefANSI(class_name);
   if (property_name) {
     result += L".";
-    result += WideString::FromLocal(property_name);
+    result += WideString::FromDefANSI(property_name);
   }
   result += L": ";
   result += details;
diff --git a/xfa/fgas/font/cfgas_fontmgr.cpp b/xfa/fgas/font/cfgas_fontmgr.cpp
index 7c88398..9a132b1 100644
--- a/xfa/fgas/font/cfgas_fontmgr.cpp
+++ b/xfa/fgas/font/cfgas_fontmgr.cpp
@@ -646,7 +646,7 @@
       continue;
 
     WideString wsFaceName =
-        WideString::FromLocal(pFontMapper->GetFaceName(i).AsStringView());
+        WideString::FromDefANSI(pFontMapper->GetFaceName(i).AsStringView());
     RegisterFaces(pFontStream, &wsFaceName);
   }
 
@@ -775,7 +775,7 @@
   pFont->m_wsFamilyNames.push_back(WideString::FromUTF8(pFace->family_name));
   pFont->m_wsFaceName =
       pFaceName ? *pFaceName
-                : WideString::FromLocal(FXFT_Get_Postscript_Name(pFace));
+                : WideString::FromDefANSI(FXFT_Get_Postscript_Name(pFace));
   pFont->m_nFaceIndex = pFace->face_index;
   m_InstalledFonts.push_back(std::move(pFont));
 }
diff --git a/xfa/fgas/font/cfgas_gefont.cpp b/xfa/fgas/font/cfgas_gefont.cpp
index 4d5fb9f..764542f 100644
--- a/xfa/fgas/font/cfgas_gefont.cpp
+++ b/xfa/fgas/font/cfgas_gefont.cpp
@@ -113,9 +113,9 @@
 WideString CFGAS_GEFont::GetFamilyName() const {
   if (!m_pFont->GetSubstFont() ||
       m_pFont->GetSubstFont()->m_Family.GetLength() == 0) {
-    return WideString::FromLocal(m_pFont->GetFamilyName().AsStringView());
+    return WideString::FromDefANSI(m_pFont->GetFamilyName().AsStringView());
   }
-  return WideString::FromLocal(
+  return WideString::FromDefANSI(
       m_pFont->GetSubstFont()->m_Family.AsStringView());
 }