Implement a salt for MediaSource IDs that can be cleared by a user.

chrome/browser/prefs/browser_prefs.cc

 // Copyright 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 "chrome/browser/prefs/browser_prefs.h"
 
 #include "apps/prefs.h"
 #include "base/debug/trace_event.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
@@ skipping 19 matching lines @@
 #include "chrome/browser/external_protocol/external_protocol_handler.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/geolocation/geolocation_prefs.h"
 #include "chrome/browser/google/google_url_tracker.h"
 #include "chrome/browser/google/google_url_tracker_factory.h"
 #include "chrome/browser/gpu/gl_string_manager.h"
 #include "chrome/browser/gpu/gpu_mode_manager.h"
 #include "chrome/browser/intranet_redirect_detector.h"
 #include "chrome/browser/io_thread.h"
 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
+#include "chrome/browser/media/media_device_id_salt.h"
 #include "chrome/browser/media/media_stream_devices_controller.h"
 #include "chrome/browser/metrics/metrics_log.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/metrics/variations/variations_service.h"
 #include "chrome/browser/net/http_server_properties_manager.h"
 #include "chrome/browser/net/net_pref_observer.h"
 #include "chrome/browser/net/predictor.h"
 #include "chrome/browser/net/pref_proxy_config_tracker_impl.h"
 #include "chrome/browser/net/ssl_config_service_manager.h"
 #include "chrome/browser/network_time/network_time_service.h"
@@ skipping 288 matching lines @@
   chrome_browser_net::HttpServerPropertiesManager::RegisterProfilePrefs(
       registry);
   chrome_browser_net::Predictor::RegisterProfilePrefs(registry);
   DownloadPrefs::RegisterProfilePrefs(registry);
   extensions::ExtensionPrefs::RegisterProfilePrefs(registry);
   ExtensionWebUI::RegisterProfilePrefs(registry);
   HostContentSettingsMap::RegisterProfilePrefs(registry);
   IncognitoModePrefs::RegisterProfilePrefs(registry);
   InstantUI::RegisterProfilePrefs(registry);
   MediaCaptureDevicesDispatcher::RegisterProfilePrefs(registry);
+  MediaDeviceIDSalt::RegisterProfilePrefs(registry);
   MediaStreamDevicesController::RegisterProfilePrefs(registry);
   NetPrefObserver::RegisterProfilePrefs(registry);
   NetworkTimeService::RegisterProfilePrefs(registry);
   NewTabUI::RegisterProfilePrefs(registry);
 #if !defined(OS_ANDROID)
   notifier::ChromeNotifierService::RegisterProfilePrefs(registry);
 #endif  // OS_ANDROID
   PasswordGenerationManager::RegisterProfilePrefs(registry);
   PasswordManager::RegisterProfilePrefs(registry);
   PrefProxyConfigTrackerImpl::RegisterProfilePrefs(registry);
@@ skipping 207 matching lines @@
     }
     local_state->ClearPref(prefs::kLastPromptedGoogleURL);
 
     current_version |= GOOGLE_URL_TRACKER_PREFS;
     local_state->SetInteger(prefs::kMultipleProfilePrefMigration,
                             current_version);
   }
 }
 
 }  // namespace chrome