Make explicit CFX_ByteString conversions to uint8_t*

xfa/fxfa/fm2js/#xfa_fm2jscontext.cpp#

Index: xfa/fxfa/fm2js/#xfa_fm2jscontext.cpp#
diff --git a/xfa/fxfa/fm2js/xfa_fm2jscontext.cpp b/xfa/fxfa/fm2js/#xfa_fm2jscontext.cpp#
similarity index 99%
copy from xfa/fxfa/fm2js/xfa_fm2jscontext.cpp
copy to xfa/fxfa/fm2js/#xfa_fm2jscontext.cpp#
index e687ee53b8421f7f4e2975af94ac26a714b0e25b..a851c8c60bacc89cc4497d71c6e24b61a5ec57d7 100644
--- a/xfa/fxfa/fm2js/xfa_fm2jscontext.cpp
+++ b/xfa/fxfa/fm2js/#xfa_fm2jscontext.cpp#
@@ -3250,7 +3250,7 @@ void CXFA_FM2JSContext::Eval(FXJSE_HOBJECT hThis,
       FXJSE_HVALUE returnValue = FXJSE_Value_Create(hruntime);
       javaScript = wsJavaScriptBuf.GetWideString();
       FXJSE_ExecuteScript(hContext,
-                          FX_UTF8Encode(javaScript, javaScript.GetLength()),
+                          FX_UTF8Encode(javaScript.c_str(), javaScript.GetLength()).c_str(),
                           returnValue);
       FXJSE_Value_Set(args.GetReturnValue(), returnValue);
       FXJSE_Value_Release(returnValue);
@@ -3470,7 +3470,7 @@ void CXFA_FM2JSContext::UnitValue(FXJSE_HOBJECT hThis,
       FXJSE_Value_SetNull(args.GetReturnValue());
     } else {
       HValueToUTF8String(unitspanValue, unitspanString);
-      const FX_CHAR* pData = unitspanString;
+      const FX_CHAR* pData = unitspanString.c_str();
       if (pData) {
         int32_t u = 0;
         while (*(pData + u) == 0x20 || *(pData + u) == 0x09 ||