GURL::Replacements methods accept a StringPiece instead of std::string&.

chrome/browser/chromeos/login/test/oobe_base_test.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 "chrome/browser/chromeos/login/test/oobe_base_test.h"
 
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 75 matching lines @@
   command_line->AppendSwitch(chromeos::switches::kForceLoginManagerInTests);
   if (!needs_background_networking_)
     command_line->AppendSwitch(::switches::kDisableBackgroundNetworking);
   command_line->AppendSwitchASCII(chromeos::switches::kLoginProfile, "user");
 
   // Create gaia and webstore URL from test server url but using different
   // host names. This is to avoid gaia response being tagged as from
   // webstore in chrome_resource_dispatcher_host_delegate.cc.
   const GURL& server_url = embedded_test_server()->base_url();
 
-  std::string gaia_host("gaia");
   GURL::Replacements replace_gaia_host;
-  replace_gaia_host.SetHostStr(gaia_host);
+  replace_gaia_host.SetHostStr("gaia");
   GURL gaia_url = server_url.ReplaceComponents(replace_gaia_host);
   command_line->AppendSwitchASCII(::switches::kGaiaUrl, gaia_url.spec());
   command_line->AppendSwitchASCII(::switches::kLsoUrl, gaia_url.spec());
   command_line->AppendSwitchASCII(::switches::kGoogleApisUrl,
                                   gaia_url.spec());
   fake_gaia_->Initialize();
 }
 
 void OobeBaseTest::SimulateNetworkOffline() {
   NetworkPortalDetector::CaptivePortalState offline_state;
@@ skipping 54 matching lines @@
 
 WebUILoginDisplay* OobeBaseTest::GetLoginDisplay() {
   ExistingUserController* controller =
       ExistingUserController::current_controller();
   CHECK(controller);
   return static_cast<WebUILoginDisplay*>(
       controller->login_display());
 }
 
 }  // namespace chromeos