Jonathan Sudiaman 9372222c8c Bug 1935482 - Replace legacy properties with SidebarState properties r=sidebar-reviewers,sessionstore-reviewers,nsharpley,sfoster ...

- Move resize observer (setting max width) logic over to SidebarState.
- Add `command` property to SidebarState.
- Handle receiving legacy session restore data.
- Add unit tests along with mocking structures to get a better idea of state/controller coupling (which we should ultimately reduce).

Differential Revision: https://phabricator.services.mozilla.com/D232730

2025-01-08 23:06:42 +00:00

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test_sidebar_state.js

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xpcshell.toml

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