aquilescanta 7c587c6b82 Prevent playlist loading if refresh is already scheduled
This greatly reduces the amount of server requests issued by
the playlist tracker.

Issue:#2548

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=150055046
2017-03-15 15:45:50 +00:00
..
2017-03-15 15:44:46 +00:00
2017-01-13 17:27:25 +00:00