Make down-conversion explicit from CFX_Widetring to CFX_WideStringC.

Companion to https://codereview.chromium.org/1853233002

BUG=

Review URL: https://codereview.chromium.org/1857073002

3 files changed, 18 insertions, 16 deletions

diff --git a/fpdfsdk/fpdfxfa/fpdfxfa_doc.cpp b/fpdfsdk/fpdfxfa/fpdfxfa_doc.cpp
index fbc05bd9aa..bb8793f1a7 100644
--- a/fpdfsdk/fpdfxfa/fpdfxfa_doc.cpp
+++ b/fpdfsdk/fpdfxfa/fpdfxfa_doc.cpp
@@ -957,7 +957,7 @@ FX_BOOL CPDFXFA_Document::_ExportSubmitFile(FPDF_FILEHANDLER* pFileHandler,
     ws.FromLocal("data");
     CFX_ByteString content = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n";
     fileStream.WriteBlock((const FX_CHAR*)content, 0, content.GetLength());
-    m_pXFADoc->SavePackage(ws, &fileStream);
+    m_pXFADoc->SavePackage(ws.AsWideStringC(), &fileStream);
   } else if (fileType == FXFA_SAVEAS_XDP) {
     if (flag == 0)
       flag = FXFA_CONFIG | FXFA_TEMPLATE | FXFA_LOCALESET | FXFA_DATASETS |
@@ -1018,11 +1018,11 @@ FX_BOOL CPDFXFA_Document::_ExportSubmitFile(FPDF_FILEHANDLER* pFileHandler,
       if (pPrePDFObj->GetString() == "form") {
         CFX_WideString ws;
         ws.FromLocal("form");
-        m_pXFADoc->SavePackage(ws, &fileStream);
+        m_pXFADoc->SavePackage(ws.AsWideStringC(), &fileStream);
       } else if (pPrePDFObj->GetString() == "datasets") {
         CFX_WideString ws;
         ws.FromLocal("datasets");
-        m_pXFADoc->SavePackage(ws, &fileStream);
+        m_pXFADoc->SavePackage(ws.AsWideStringC(), &fileStream);
       } else {
         // PDF,creator.
       }
diff --git a/fpdfsdk/fsdk_baseform.cpp b/fpdfsdk/fsdk_baseform.cpp
index fe7c23932f..3dad62472f 100644
--- a/fpdfsdk/fsdk_baseform.cpp
+++ b/fpdfsdk/fsdk_baseform.cpp
@@ -64,7 +64,7 @@ CXFA_FFWidget* CPDFSDK_Widget::GetMixXFAWidget() const {
         }
 
         if (!sName.IsEmpty())
-          m_hMixXFAWidget = pDocView->GetWidgetByName(sName);
+          m_hMixXFAWidget = pDocView->GetWidgetByName(sName.AsWideStringC());
       }
     }
     return m_hMixXFAWidget;
@@ -80,7 +80,7 @@ CXFA_FFWidget* CPDFSDK_Widget::GetGroupMixXFAWidget() {
     if (CXFA_FFDocView* pDocView = pDoc->GetXFADocView()) {
       CFX_WideString sName = GetName();
       if (!sName.IsEmpty())
-        return pDocView->GetWidgetByName(sName);
+        return pDocView->GetWidgetByName(sName.AsWideStringC());
     }
   }
 
@@ -2448,7 +2448,7 @@ FX_BOOL CPDFSDK_InterForm::ExportFieldsToFDFTextBuf(
     bool bIncludeOrExclude,
     CFX_ByteTextBuf& textBuf) {
   std::unique_ptr<CFDF_Document> pFDF(m_pInterForm->ExportToFDF(
-      m_pDocument->GetPath(), fields, bIncludeOrExclude));
+      m_pDocument->GetPath().AsWideStringC(), fields, bIncludeOrExclude));
   return pFDF ? pFDF->WriteBuf(textBuf) : FALSE;
 }
 
@@ -2486,7 +2486,8 @@ FX_BOOL CPDFSDK_InterForm::SubmitForm(const CFX_WideString& sDestination,
 
   CPDFDoc_Environment* pEnv = m_pDocument->GetEnv();
   CFX_WideString wsPDFFilePath = m_pDocument->GetPath();
-  CFDF_Document* pFDFDoc = m_pInterForm->ExportToFDF(wsPDFFilePath);
+  CFDF_Document* pFDFDoc =
+      m_pInterForm->ExportToFDF(wsPDFFilePath.AsWideStringC());
   if (!pFDFDoc)
     return FALSE;
 
@@ -2515,7 +2516,8 @@ FX_BOOL CPDFSDK_InterForm::SubmitForm(const CFX_WideString& sDestination,
 }
 
 FX_BOOL CPDFSDK_InterForm::ExportFormToFDFTextBuf(CFX_ByteTextBuf& textBuf) {
-  CFDF_Document* pFDF = m_pInterForm->ExportToFDF(m_pDocument->GetPath());
+  CFDF_Document* pFDF =
+      m_pInterForm->ExportToFDF(m_pDocument->GetPath().AsWideStringC());
   if (!pFDF)
     return FALSE;
 
diff --git a/fpdfsdk/javascript/PublicMethods.cpp b/fpdfsdk/javascript/PublicMethods.cpp
index b928aab31d..308163d454 100644
--- a/fpdfsdk/javascript/PublicMethods.cpp
+++ b/fpdfsdk/javascript/PublicMethods.cpp
@@ -1219,11 +1219,11 @@ double CJS_PublicMethods::MakeInterDate(CFX_WideString strValue) {
   else if (sTemp.Compare(L"Dec") == 0)
     nMonth = 12;
 
-  int nDay = FX_atof(wsArray[2]);
-  int nHour = FX_atof(wsArray[3]);
-  int nMin = FX_atof(wsArray[4]);
-  int nSec = FX_atof(wsArray[5]);
-  int nYear = FX_atof(wsArray[7]);
+  int nDay = FX_atof(wsArray[2].AsWideStringC());
+  int nHour = FX_atof(wsArray[3].AsWideStringC());
+  int nMin = FX_atof(wsArray[4].AsWideStringC());
+  int nSec = FX_atof(wsArray[5].AsWideStringC());
+  int nYear = FX_atof(wsArray[7].AsWideStringC());
   double dRet = JS_MakeDate(JS_MakeDay(nYear, nMonth - 1, nDay),
                             JS_MakeTime(nHour, nMin, nSec, 0));
   if (JS_PortIsNan(dRet))
@@ -1726,7 +1726,7 @@ FX_BOOL CJS_PublicMethods::AFSimple_Calculate(
             CFX_WideString trimmed = pFormField->GetValue();
             trimmed.TrimRight();
             trimmed.TrimLeft();
-            dTemp = FX_atof(trimmed);
+            dTemp = FX_atof(trimmed.AsWideStringC());
           } break;
           case FIELDTYPE_PUSHBUTTON: {
             dTemp = 0.0;
@@ -1740,7 +1740,7 @@ FX_BOOL CJS_PublicMethods::AFSimple_Calculate(
                   CFX_WideString trimmed = pFormCtrl->GetExportValue();
                   trimmed.TrimRight();
                   trimmed.TrimLeft();
-                  dTemp = FX_atof(trimmed);
+                  dTemp = FX_atof(trimmed.AsWideStringC());
                   break;
                 }
               }
@@ -1751,7 +1751,7 @@ FX_BOOL CJS_PublicMethods::AFSimple_Calculate(
               CFX_WideString trimmed = pFormField->GetValue();
               trimmed.TrimRight();
               trimmed.TrimLeft();
-              dTemp = FX_atof(trimmed);
+              dTemp = FX_atof(trimmed.AsWideStringC());
             }
           } break;
           default: