arc: Use overlay to show links from ToS.

chrome/browser/chromeos/arc/arc_support_host.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/chromeos/arc/arc_support_host.h"
 
 #include <string>
 
 #include "ash/common/system/chromeos/devicetype_utils.h"
 #include "base/i18n/timezone.h"
@@ skipping 215 matching lines @@
   loadtime_data->SetString(
       "learnMoreStatistics",
       l10n_util::GetStringUTF16(IDS_ARC_OPT_IN_LEARN_MORE_STATISTICS));
   loadtime_data->SetString(
       "learnMoreBackupAndRestore",
       l10n_util::GetStringUTF16(IDS_ARC_OPT_IN_LEARN_MORE_BACKUP_AND_RESTORE));
   loadtime_data->SetString(
       "learnMoreLocationServices",
       l10n_util::GetStringUTF16(IDS_ARC_OPT_IN_LEARN_MORE_LOCATION_SERVICES));
   loadtime_data->SetString(
-      "learnMoreClose",
+      "overlayClose",
       l10n_util::GetStringUTF16(IDS_ARC_OPT_IN_LEARN_MORE_CLOSE));
 
   const std::string& app_locale = g_browser_process->GetApplicationLocale();
   const std::string& country_code = base::CountryCodeForCurrentTimezone();
   loadtime_data->SetString("countryCode", country_code);
   loadtime_data->SetBoolean(kArcManaged, arc_auth_service->IsArcManaged());
 
   webui::SetLoadTimeDataDefaults(app_locale, loadtime_data.get());
   DCHECK(arc_auth_service);
   const std::string device_id = user_manager::known_user::GetDeviceId(
@@ skipping 162 matching lines @@
   } else {
     LOG(ERROR) << "Unknown message: " << message_string;
     NOTREACHED();
   }
 }
 
 scoped_refptr<base::SingleThreadTaskRunner> ArcSupportHost::task_runner()
     const {
   return base::ThreadTaskRunnerHandle::Get();
 }