Fixes #1079: search engine constraints (#1131)
Fixes #1079: search engine constraints (#1131)


mozilla-mobile/focus-ios,mozilla/focus,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,mozilla-mobile/focus-ios,justindarc/focus,mozilla-mobile/focus-ios,mozilla/focus,mozilla-mobile/focus,mozilla-mobile/focus,mozilla-mobile/focus,justindarc/focus,mozilla-mobile/focus,justindarc/focus,justindarc/focus,mozilla/focus,mozilla-mobile/focus,justindarc/focus,mozilla-mobile/focus-ios,mozilla/focus,mozilla/focus,mozilla-mobile/focus,justindarc/focus