Net: Convert username and password to string16.

net/http/http_auth_handler_unittest.cc

Index: net/http/http_auth_handler_unittest.cc
===================================================================
--- net/http/http_auth_handler_unittest.cc	(revision 53997)
+++ net/http/http_auth_handler_unittest.cc	(working copy)
@@ -4,6 +4,7 @@
 
 #include "net/http/http_auth_handler.h"
 
+#include "base/string_util.h"
 #include "net/base/capturing_net_log.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log_unittest.h"
@@ -18,8 +19,8 @@
   NetLog::Source source;
   GURL origin("http://www.example.com");
   std::string challenge = "Mock asdf";
-  std::wstring username = L"user";
-  std::wstring password = L"pass";
+  string16 username = ASCIIToUTF16("user");
+  string16 password = ASCIIToUTF16("pass");
   std::string auth_token;
   HttpRequestInfo request;