Make down-conversion explicit from CFX_Widetring to CFX_WideStringC.

xfa/fxbarcode/cbc_codabar.cpp

Index: xfa/fxbarcode/cbc_codabar.cpp
diff --git a/xfa/fxbarcode/cbc_codabar.cpp b/xfa/fxbarcode/cbc_codabar.cpp
index a7310ba1fcd3609c22a354bbd542c7ddf3ff3b80..d03890409503b1e845333f2113519c88c17d8f53 100644
--- a/xfa/fxbarcode/cbc_codabar.cpp
+++ b/xfa/fxbarcode/cbc_codabar.cpp
@@ -77,7 +77,8 @@ FX_BOOL CBC_Codabar::Encode(const CFX_WideStringC& contents,
                       ->Encode(byteString, format, outWidth, outHeight, e);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   ((CBC_OneDimWriter*)m_pBCWriter)
-      ->RenderResult(filtercontents, data, outWidth, isDevice, e);
+      ->RenderResult(filtercontents.AsWideStringC(), data, outWidth, isDevice,
+                     e);
   FX_Free(data);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   return TRUE;
@@ -87,18 +88,20 @@ FX_BOOL CBC_Codabar::RenderDevice(CFX_RenderDevice* device,
                                   const CFX_Matrix* matirx,
                                   int32_t& e) {
   CFX_WideString renderCon =
-      ((CBC_OnedCodaBarWriter*)m_pBCWriter)->encodedContents(m_renderContents);
+      ((CBC_OnedCodaBarWriter*)m_pBCWriter)
+          ->encodedContents(m_renderContents.AsWideStringC());
   ((CBC_OneDimWriter*)m_pBCWriter)
-      ->RenderDeviceResult(device, matirx, renderCon, e);
+      ->RenderDeviceResult(device, matirx, renderCon.AsWideStringC(), e);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   return TRUE;
 }
 
 FX_BOOL CBC_Codabar::RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) {
   CFX_WideString renderCon =
-      ((CBC_OnedCodaBarWriter*)m_pBCWriter)->encodedContents(m_renderContents);
+      ((CBC_OnedCodaBarWriter*)m_pBCWriter)
+          ->encodedContents(m_renderContents.AsWideStringC());
   ((CBC_OneDimWriter*)m_pBCWriter)
-      ->RenderBitmapResult(pOutBitmap, renderCon, e);
+      ->RenderBitmapResult(pOutBitmap, renderCon.AsWideStringC(), e);
   BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
   return TRUE;
 }