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

chrome/browser/content_settings/content_settings_utils.cc

Index: chrome/browser/content_settings/content_settings_utils.cc
diff --git a/chrome/browser/content_settings/content_settings_utils.cc b/chrome/browser/content_settings/content_settings_utils.cc
index eaafcaa32509940b255818f7541831d5d78cb437..7a1a8e7b41618968c3e1248e7d0a2c6cbde53dad 100644
--- a/chrome/browser/content_settings/content_settings_utils.cc
+++ b/chrome/browser/content_settings/content_settings_utils.cc
@@ -35,6 +35,7 @@ const char* kTypeNames[] = {
   "fullscreen",
   "mouselock",
   "mixed-script",
+  "media-stream"
 };
 COMPILE_ASSERT(arraysize(kTypeNames) == CONTENT_SETTINGS_NUM_TYPES,
                type_names_incorrect_size);