[Refactor] Use ScopedTestPublicSessionLoginState in code

chrome/browser/extensions/api/web_request/web_request_permissions_unittest.cc

 // Copyright (c) 2012 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 <stddef.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/common/extensions/extension_test_util.h"
+#include "chromeos/login/scoped_test_public_session_login_state.h"
 #include "content/public/browser/resource_request_info.h"
 #include "content/public/common/previews_state.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "extensions/browser/api/web_request/web_request_permissions.h"
 #include "extensions/browser/info_map.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/permissions/permissions_data.h"
 #include "ipc/ipc_message.h"
 #include "net/base/request_priority.h"
 #include "net/traffic_annotation/network_traffic_annotation_test_helper.h"
@@ skipping 192 matching lines @@
 
   // com_extension_ doesn't have host permission for .org URLs.
   EXPECT_EQ(PermissionsData::ACCESS_DENIED,
             WebRequestPermissions::CanExtensionAccessURL(
                 extension_info_map_.get(), com_policy_extension_->id(),
                 org_request->url(),
                 -1,  // No tab id.
                 false, // crosses_incognito
                 WebRequestPermissions::REQUIRE_HOST_PERMISSION));
 
-  // Set Public Session state.
-  chromeos::LoginState::Initialize();
-  chromeos::LoginState::Get()->SetLoggedInState(
-      chromeos::LoginState::LOGGED_IN_ACTIVE,
-      chromeos::LoginState::LOGGED_IN_USER_PUBLIC_ACCOUNT);
+  chromeos::ScopedTestPublicSessionLoginState login_state;
 
   // Host permission checks are disabled in Public Sessions, instead all URLs
   // are whitelisted.
   EXPECT_EQ(PermissionsData::ACCESS_ALLOWED,
             WebRequestPermissions::CanExtensionAccessURL(
                 extension_info_map_.get(), com_policy_extension_->id(),
                 org_request->url(),
                 -1,  // No tab id.
                 false, // crosses_incognito
                 WebRequestPermissions::REQUIRE_HOST_PERMISSION));
@@ skipping 13 matching lines @@
 
   EXPECT_EQ(PermissionsData::ACCESS_DENIED,
             WebRequestPermissions::CanExtensionAccessURL(
                 extension_info_map_.get(), com_policy_extension_->id(),
                 chrome_request->url(),
                 -1,  // No tab id.
                 false, // crosses_incognito
                 WebRequestPermissions::REQUIRE_HOST_PERMISSION));
 #endif
 }