cros: Remove system-level policy for audio capture allowed

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 <string>
 
 #include "base/debug/trace_event.h"
 #include "base/metrics/histogram.h"
@@ skipping 306 matching lines @@
   RegisterBrowserPrefs(registry);
   // The native GCM is used on Android instead.
   gcm::GCMChannelStatusSyncer::RegisterPrefs(registry);
 #if !defined(OS_CHROMEOS)
   RegisterDefaultBrowserPromptPrefs(registry);
 #endif  // !defined(OS_CHROMEOS)
 #endif  // !defined(OS_ANDROID)
 
 #if defined(OS_CHROMEOS)
   ChromeOSMetricsProvider::RegisterPrefs(registry);
-  chromeos::AudioDevicesPrefHandlerImpl::RegisterPrefs(
-      registry, prefs::kAudioCaptureAllowed);
+  chromeos::AudioDevicesPrefHandlerImpl::RegisterPrefs(registry);
   chromeos::ChromeUserManagerImpl::RegisterPrefs(registry);
   chromeos::DataPromoNotification::RegisterPrefs(registry);
   chromeos::DeviceOAuth2TokenService::RegisterPrefs(registry);
   chromeos::device_settings_cache::RegisterPrefs(registry);
   chromeos::default_pinned_apps_field_trial::RegisterPrefs(registry);
   chromeos::EnableDebuggingScreenHandler::RegisterPrefs(registry);
   chromeos::language_prefs::RegisterPrefs(registry);
   chromeos::KioskAppManager::RegisterPrefs(registry);
   chromeos::MultiProfileUserController::RegisterPrefs(registry);
   chromeos::HIDDetectionScreenHandler::RegisterPrefs(registry);
@@ skipping 368 matching lines @@
       host_zoom_dictionary, false /* sanitize_partition_host_zoom_levels */);
 
   // We're done migrating the profile per-host zoom level values, so we clear
   // them all.
   DictionaryPrefUpdate host_zoom_dictionary_update(
       prefs, prefs::kPerHostZoomLevelsDeprecated);
   host_zoom_dictionary_update->Clear();
 }
 
 }  // namespace chrome