Bug 1054274 - Split out browser overflow menu into shared component. r=benfrancis,kgrandon
Bug 1054274 - Use shared component for browser overflow menu. r=benfrancis,kgrandon
Merge pull request #22927 from Cwiiis/bug1054274-shared-overflow-menu

Bug 1054274 - Split out browser overflow menu into shared component. r=benfrancis,kgrandon