Make CFX_WideString::FromUTF8() take a CFX_ByteStringC argument.

xfa/fxfa/parser/xfa_utils_imp.cpp

Index: xfa/fxfa/parser/xfa_utils_imp.cpp
diff --git a/xfa/fxfa/parser/xfa_utils_imp.cpp b/xfa/fxfa/parser/xfa_utils_imp.cpp
index 3d2e8bed4e7bd7eda3492b2922013f7da574e977..1b3dddc674943afcc9b65050797b91cad4782f8e 100644
--- a/xfa/fxfa/parser/xfa_utils_imp.cpp
+++ b/xfa/fxfa/parser/xfa_utils_imp.cpp
@@ -392,8 +392,7 @@ FX_DOUBLE XFA_WideStringToDouble(const CFX_WideString& wsStringVal) {
 }
 
 FX_DOUBLE XFA_ByteStringToDouble(const CFX_ByteStringC& szStringVal) {
-  CFX_WideString wsValue =
-      CFX_WideString::FromUTF8(szStringVal.c_str(), szStringVal.GetLength());
+  CFX_WideString wsValue = CFX_WideString::FromUTF8(szStringVal);
   return XFA_WideStringToDouble(wsValue);
 }