Save/Restore ALSA volume/mute

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index a90aed0f1542cc5f4b6663615531d85e5f95e205..88e4b13a060937fde960df54831703e19f6ec965 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -65,6 +65,7 @@
 #endif
 
 #if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/audio_mixer_alsa.h"
 #include "chrome/browser/chromeos/login/apply_services_customization.h"
 #include "chrome/browser/chromeos/login/signed_settings_temp_storage.h"
 #include "chrome/browser/chromeos/login/user_manager.h"
@@ -103,6 +104,7 @@ void RegisterLocalState(PrefService* local_state) {
   BackgroundPageTracker::RegisterPrefs(local_state);
   NotificationUIManager::RegisterPrefs(local_state);
 #if defined(OS_CHROMEOS)
+  chromeos::AudioMixerAlsa::RegisterPrefs(local_state);
   chromeos::UserManager::RegisterPrefs(local_state);
   chromeos::UserCrosSettingsProvider::RegisterPrefs(local_state);
   WizardController::RegisterPrefs(local_state);