Bug 971486 - [System2] Instantiable EdgeSwipeDetector r=alive
Merge pull request #24256 from KevinGrandon/bug_971486_system2_edge_swipe_detector

Bug 971486 - [System2] Instantiable EdgeSwipeDetector
Bug 1061215 - [Messages][Refactoring] Improve handling of remaining chars counter. r=julien