Peter Boström 0453ef857f Prevent busy-looping PacedSender on small packets.
Skip accounting for small packets and suspend the prober if no
large-enough packets have been sent for some time. This especially seems
to have triggered in audio-only calls where all packets are too small,
making TimeUntilNextProbe return 0 forever, causing the module process
thread to wake up forever.

BUG=webrtc:5506
R=stefan@webrtc.org

Review URL: https://codereview.webrtc.org/1688703002 .

Cr-Commit-Position: refs/heads/master@{#11634}
2016-02-16 15:23:16 +00:00
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