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 6eefa4c2b0d94b705f28f15decb5d4e267778c9b..f9c51eae8c4ad52e1b0e4a3c077a90acff8a4b78 100644
--- a/chrome/browser/content_settings/content_settings_utils.cc
+++ b/chrome/browser/content_settings/content_settings_utils.cc
@@ -33,7 +33,8 @@ const char* kTypeNames[] = {
   "intents",
   "auto-select-certificate",
   "fullscreen",
-  "mouselock"
+  "mouselock",
+  "mediastream"
 };
 COMPILE_ASSERT(arraysize(kTypeNames) == CONTENT_SETTINGS_NUM_TYPES,
                type_names_incorrect_size);