Constraints do not have sources, so this is dead code.
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/7e63ed80b1a09ebd6d008563c5ae0aa530a5e0c9 commit 7e63ed80b1a09ebd6d008563c5ae0aa530a5e0c9 Author: Guido Urdaneta <guidou@chromium.org> Date: Fri Aug 24 14:04:47 2018 Remove dead code related to MediaStreamSource constraints. MediaStreamSources do not have constraints, so remove old accessors that provided that functionality. Bug: 877430 Change-Id: Iee3973f5ddcb8d85608a798565784a59e474231a Reviewed-on: https://chromium-review.googlesource.com/1188312 Reviewed-by: Kentaro Hara <haraken@chromium.org> Commit-Queue: Guido Urdaneta <guidou@chromium.org> Cr-Commit-Position: refs/heads/master@{#585829} [modify] https://crrev.com/7e63ed80b1a09ebd6d008563c5ae0aa530a5e0c9/third_party/blink/public/platform/web_media_stream_source.h [modify] https://crrev.com/7e63ed80b1a09ebd6d008563c5ae0aa530a5e0c9/third_party/blink/renderer/modules/mediastream/user_media_request.cc [modify] https://crrev.com/7e63ed80b1a09ebd6d008563c5ae0aa530a5e0c9/third_party/blink/renderer/platform/exported/web_media_stream_source.cc [modify] https://crrev.com/7e63ed80b1a09ebd6d008563c5ae0aa530a5e0c9/third_party/blink/renderer/platform/mediastream/media_stream_source.h
Comment 1 by guidou@chromium.org
, Aug 24