Reason for revert:
Breaks perf tests:
https://build.chromium.org/p/client.webrtc.perf/builders/Win7/builds/1679
https://build.chromium.org/p/client.webrtc.perf/builders/Android32%20Tests%20%28L%20Nexus5%29/builds/2325
Original issue's description:
> Add framerate to VideoSinkWants and ability to signal on overuse
>
> In ViEEncoder, try to reduce framerate instead of resolution if the
> current degradation preference is maintain-resolution rather than
> balanced.
>
> BUG=webrtc:4172
>
> Review-Url: https://codereview.webrtc.org/2716643002
> Cr-Commit-Position: refs/heads/master@{#17327}
> Committed: 72acf25261
TBR=nisse@webrtc.org,magjed@webrtc.org,kthelgason@webrtc.org,ilnik@webrtc.org,stefan@webrtc.org,sprang@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:4172
Review-Url: https://codereview.webrtc.org/2764133002
Cr-Commit-Position: refs/heads/master@{#17331}
Name: WebRTC URL: http://www.webrtc.org Version: 90 License: BSD License File: LICENSE Description: WebRTC provides real time voice and video processing functionality to enable the implementation of PeerConnection/MediaStream. Third party code used in this project is described in the file LICENSE_THIRD_PARTY.