henrik.lundin da8bbf6e3c NetEq: Change member variables for current RTP types to rtc::Optionals
With this change, the value 0xFF is no longer used to flag that the RTP
type is unknown. Instead, an empty value for the rtc::Optional is used.

Review-Url: https://codereview.webrtc.org/2290153002
Cr-Commit-Position: refs/heads/master@{#13989}
2016-08-31 10:14:18 +00:00
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