[CrOS Tether] ProximityAuth WebUI improvement: show the local device's ID.

chrome/browser/signin/chrome_proximity_auth_client.cc

 // Copyright 2015 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/signin/chrome_proximity_auth_client.h"
 
 #include <stdint.h>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/sys_info.h"
 #include "base/version.h"
 #include "build/build_config.h"
 #include "chrome/browser/cryptauth/chrome_cryptauth_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_window.h"
 #include "chrome/browser/signin/easy_unlock_service.h"
 #include "chrome/browser/signin/easy_unlock_service_regular.h"
 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "components/cryptauth/cryptauth_client_impl.h"
 #include "components/cryptauth/cryptauth_device_manager.h"
 #include "components/cryptauth/cryptauth_enrollment_manager.h"
+#include "components/cryptauth/local_device_data_provider.h"
 #include "components/cryptauth/secure_message_delegate.h"
 #include "components/prefs/pref_service.h"
 #include "components/proximity_auth/logging/logging.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "components/signin/core/browser/signin_manager_base.h"
 #include "components/version_info/version_info.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/login/easy_unlock/secure_message_delegate_chromeos.h"
 #include "chrome/browser/signin/easy_unlock_service_signin_chromeos.h"
@@ skipping 93 matching lines @@
 
 cryptauth::CryptAuthDeviceManager*
 ChromeProximityAuthClient::GetCryptAuthDeviceManager() {
   return GetCryptAuthService()->GetCryptAuthDeviceManager();
 }
 
 cryptauth::CryptAuthService* ChromeProximityAuthClient::GetCryptAuthService() {
   return ChromeCryptAuthServiceFactory::GetInstance()->GetForBrowserContext(
       profile_);
 }
+
+std::string ChromeProximityAuthClient::GetLocalDevicePublicKey() {
+  cryptauth::LocalDeviceDataProvider provider(GetCryptAuthService());
+  std::string local_public_key;
+  provider.GetLocalDeviceData(&local_public_key, nullptr);
+  return local_public_key;
+}