tree ce1b95f9ff264dce7324268db78fb7037cc498e6
parent 3d351c68858603f8cfe1cd2f2b13e1ae8aee9dc8
author Chen Xing <chxg@google.com> 1565002731 +0200
committer Commit Bot <commit-bot@chromium.org> 1565008222 +0000

Remove the old `ContributingSources` class.

This change removes the old `ContributingSources` class. It has been replaced by the new `SourceTracker`.

Bug: webrtc:10793
Change-Id: Ibd481cf6584837c46b229b9fc2a071362f07d361
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/147878
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Chen Xing <chxg@google.com>
Cr-Commit-Position: refs/heads/master@{#28756}