Save/Restore ALSA volume/mute

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 502afd97f9e785d4f2dc95e234042301de41c153..79647b96530e09877afb952b83b479680fb80e23 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -442,6 +442,12 @@ const char kEnableScreenLock[] = "settings.enable_screen_lock";
 const char kShowPlanNotifications[] =
     "settings.internet.mobile.show_plan_notifications";
 
+// A boolean pref to initially mute volume if true.
+const char kAudioMute[] = "settings.audio.mute";
+
+// A double pref to set initial volume.
+const char kAudioVolume[] = "settings.audio.volume";
+
 #endif  // defined(OS_CHROMEOS)
 
 // The disabled messages in IPC logging.