In local logging, it appears that animating the menubar *does not* force a rebuild of the video layer, which was one theory of what might cause flickering, and something that we could do something about. What it does do is trigger the output of one of those `_ZN15MenuBarInstance22RemoveAutoShowObserverEv` call stacks in the console. I'll put a patch together that makes the video logging more usefull
Bug 1808155 Comment 10 Edit History
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In local logging, it appears that animating the menubar *does not* force a rebuild of the video layer, which was one theory of what might cause flickering, and something that we could do something about. What it does do is trigger the output of one of those `_ZN15MenuBarInstance22RemoveAutoShowObserverEv` call stacks in the console. I'll put a patch together that makes the video logging more useful.