[plugin system] Add stubbed support for proposed extensions.allAcross ExtensionHosts and related APIs#12277

Merged

marcdumais-work merged 1 commit intomasterfrom md/12276

Mar 10, 2023

+43-2

Commits on Mar 9, 2023

[plugin system] Add stubbed support for proposed extensions.allAcrossExtensionHosts and related APIs
marcdumais-work
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