Andreas Farre d2c1ccbf9e Bug 1582716 - Remove nsDocShell::GetIsOnlyToplevelInTabGroup. r=nika
We can remove isOnlyToplevelInTabGroup entirely since we have
BrowsingContext/BrowsingContextGroup exposed through
chrome-webidl. Checking if a browsing context is the only top level
(auxilliary or otherwise) is only a matter of checking that there
isn't a parent, and that the size of the browsing context group is 1.

Differential Revision: https://phabricator.services.mozilla.com/D46590

--HG--
extra : moz-landing-system : lando
2019-09-24 14:29:18 +00:00
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