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 84ddbdb084ffdd7f3afab0523ef02fae8aa5c5ee..7c075b4083e95effdeee602f786c8ddf29f8873c 100755
--- a/tools/metrics/actions/extract_actions.py
+++ b/tools/metrics/actions/extract_actions.py
@@ -200,10 +200,11 @@ 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');