Add one extra UMA for video casting

tools/metrics/actions/extract_actions.py

Index: tools/metrics/actions/extract_actions.py
diff --git a/tools/metrics/actions/extract_actions.py b/tools/metrics/actions/extract_actions.py
index 1a4893d045be878ba3353725b4a05d9855412b96..a799812f7433bebc0fc28741e99f8bf231022039 100755
--- a/tools/metrics/actions/extract_actions.py
+++ b/tools/metrics/actions/extract_actions.py
@@ -206,10 +206,11 @@ def AddAndroidActions(actions):
   Arguments
     actions: set of actions to add to.
   """
-  actions.add('Cast_Sender_CastEnterFullscreen');
   actions.add('Cast_Sender_CastDeviceSelected');
-  actions.add('Cast_Sender_YouTubeDeviceSelected');
+  actions.add('Cast_Sender_CastEnterFullscreen');
+  actions.add('Cast_Sender_CastMediaType');
   actions.add('Cast_Sender_CastPlayRequested');
+  actions.add('Cast_Sender_YouTubeDeviceSelected');
   actions.add('DataReductionProxy_PromoDisplayed');
   actions.add('DataReductionProxy_PromoLearnMore');
   actions.add('DataReductionProxy_TurnedOn');