afe1f74c04
If a very large frame is sent (high res slide change) when the available send bitrate is very low, the it might take many seconds before any new frames are emitted as the accrued debt will take time to pay off. Add a bailout, so that if a frame hasn't been sent for 2 seconds, cancel the debt immediately, even if the target bitrate is then exceeded. BUG=webrtc:5750 Review URL: https://codereview.webrtc.org/1869003002 Cr-Commit-Position: refs/heads/master@{#12328}