GitLab

Adds Cast for Education as a possible MediaSink icon type. This will be a no-op until the component extension supports the icon type.

Bug: 681048
Cq-Include-Trybots: master.tryserver.chromium.linux:closure_compilation
Change-Id: Ie61c80887956709ca88b52ae45894bf521ee938a
Reviewed-on: https://chromium-review.googlesource.com/577981
Commit-Queue: Takumi Fujimoto <takumif@chromium.org>
Reviewed-by: Jennifer Apacible <apacible@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#488509}