Use explicit WebString conversions in autofill

components/autofill/content/renderer/form_classifier.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/autofill/content/renderer/form_classifier.h"
 
 #include <algorithm>
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
@@ skipping 239 matching lines @@
       (found_signup_text_features && !found_signin_text_features)) {
     WebInputElement password_creation_field;
 
     // TODO(crbug.com/618309): Improve local classifier to distinguish password
     // creation and password usage fields on the change password forms.
     if (passwords.size() == 3)
       password_creation_field = passwords[1];
     else
       password_creation_field = passwords[0];
 
-    *generation_field = password_creation_field.nameForAutofill();
+    *generation_field = password_creation_field.nameForAutofill().utf16();
     return true;
   }
   return false;
 }
 }