Use explicit WebString conversions in autofill

components/autofill/content/renderer/renderer_save_password_progress_logger.cc

 // Copyright 2014 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/renderer_save_password_progress_logger.h"
 
 #include "base/strings/string16.h"
 #include "base/values.h"
 #include "third_party/WebKit/public/web/WebFormControlElement.h"
 
 namespace autofill {
 
 RendererSavePasswordProgressLogger::RendererSavePasswordProgressLogger(
     mojom::PasswordManagerDriver* password_manager_driver)
     : password_manager_driver_(password_manager_driver) {
   DCHECK(password_manager_driver);
 }
 
 RendererSavePasswordProgressLogger::~RendererSavePasswordProgressLogger() {}
 
 void RendererSavePasswordProgressLogger::SendLog(const std::string& log) {
   password_manager_driver_->RecordSavePasswordProgress(log);
 }
 
 void RendererSavePasswordProgressLogger::LogElementName(
     StringID label,
     const blink::WebFormControlElement& element) {
-  LogValue(label, base::StringValue(ScrubElementID(
-                      base::string16(element.nameForAutofill()))));
+  LogValue(label, base::StringValue(
+                      ScrubElementID((element.nameForAutofill().utf16()))));
 }
 
 }  // namespace autofill