Merge pull request #20357 from flodolo/bug1018042

Bug 1018042 - [Settings] Pass available size as number to l10n.js
Merge pull request #20393 from TheoChevalier/video-menu-l10n

Bug 1024239 - [video] New menu on video is not localized
Merge pull request #20414 from EverythingMe/1024330-ctx

Bug 1024330 - [Everything.me] Device context for Partners API
Merge pull request #20168 from justindarc/bug1015412

Bug 1015412 - [FMRadio] Implement new startup loading events
Conflicts:
	tests/performance/startup_events_test.js
Merge pull request #20382 from KevinGrandon/bug_1023714_vertical_cancel_localization

Bug 1023714 - [vertical homescreen] Cancel button is not localized after a long press on the homescreen