Implement basic USB setup in the cups printer detector. Factor out

chrome/browser/ui/webui/settings/chromeos/cups_printers_handler.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 "chrome/browser/ui/webui/settings/chromeos/cups_printers_handler.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 224 matching lines @@
 
   // Copy the printer for the configurer.  Ownership needs to be transfered to
   // the receiver of the callback.
   const Printer printer_copy = *printer;
   printer_configurer_->SetUpPrinter(
       printer_copy,
       base::Bind(&CupsPrintersHandler::OnAddedPrinter,
                  weak_factory_.GetWeakPtr(), base::Passed(&printer)));
 }
 
-void CupsPrintersHandler::OnAddedPrinter(std::unique_ptr<Printer> printer,
-                                         chromeos::SetupResult result_code) {
+void CupsPrintersHandler::OnAddedPrinter(
+    std::unique_ptr<Printer> printer,
+    chromeos::PrinterSetupResult result_code) {
   std::string printer_name = printer->display_name();
-  bool success = (result_code == chromeos::SetupResult::SUCCESS);
+  bool success = (result_code == chromeos::PrinterSetupResult::SUCCESS);
   if (success) {
     PrintersManagerFactory::GetForBrowserContext(profile_)->RegisterPrinter(
         std::move(printer));
   }
   CallJavascriptFunction("cr.webUIListenerCallback",
                          base::Value("on-add-cups-printer"),
                          base::Value(success), base::Value(printer_name));
 }
 
 void CupsPrintersHandler::OnAddPrinterError() {
@@ skipping 130 matching lines @@
                          base::Value("on-printer-discovered"), *printers_list);
 }
 
 void CupsPrintersHandler::OnDiscoveryDone() {
   CallJavascriptFunction("cr.webUIListenerCallback",
                          base::Value("on-printer-discovery-done"));
 }
 
 }  // namespace settings
 }  // namespace chromeos