4d67b6f815
This unfortunately adds some ASCII-to-UTF16 conversion because: 1. Enums use nsLiteralCString internally 2. nsAlertsService expects nsString. (macOS and Windows expects UTF16 while libnotify expects UTF8) 3. ServiceWorker events currently expect nsString. Fixing this requires touching quite some files and I filed bug 1894240 for that. Differential Revision: https://phabricator.services.mozilla.com/D208920