So that we can test GPU process DOM rendering on macOS, https://build.webkit.org/#/builders/432 should pass --remote-layer-tree to run-webkit-tests.
<rdar://problem/101484140>
Pull request: https://github.com/WebKit/WebKit/pull/5780
Committed 256406@main (894274daff0e): <https://commits.webkit.org/256406@main> Reviewed commits have been landed. Closing PR #5780 and removing active labels.