add "always allow" option to the mediastream infobar and allow user to allow/not allow acces to devi

chrome/browser/prefs/pref_model_associator.cc

Index: chrome/browser/prefs/pref_model_associator.cc
diff --git a/chrome/browser/prefs/pref_model_associator.cc b/chrome/browser/prefs/pref_model_associator.cc
index 4a9a7e7d35cbe8cc52461b00536d7219fee215b0..5c607aeae0b215857af14415f7a2f2ce3996e0d3 100644
--- a/chrome/browser/prefs/pref_model_associator.cc
+++ b/chrome/browser/prefs/pref_model_associator.cc
@@ -171,6 +171,7 @@ Value* PrefModelAssociator::MergePreference(
     const PrefService::Preference& local_pref,
     const Value& server_value) {
   const std::string& name(local_pref.name());
+  DLOG(WARNING) << "MergePreference " << name;
   if (name == prefs::kURLsToRestoreOnStartup ||
       name == prefs::kDesktopNotificationAllowedOrigins ||
       name == prefs::kDesktopNotificationDeniedOrigins) {