Message Editing and Deleting permissions (#4692)

webapp/utils/constants.jsx

@@ -860,6 +860,13 @@ export const Constants = {
     PERMISSIONS_ALL: 'all',
     PERMISSIONS_TEAM_ADMIN: 'team_admin',
     PERMISSIONS_SYSTEM_ADMIN: 'system_admin',
+    PERMISSIONS_DELETE_POST_ALL: 'all',
+    PERMISSIONS_DELETE_POST_TEAM_ADMIN: 'team_admin',
+    PERMISSIONS_DELETE_POST_SYSTEM_ADMIN: 'system_admin',
+    ALLOW_EDIT_POST_ALWAYS: 'always',
+    ALLOW_EDIT_POST_NEVER: 'never',
+    ALLOW_EDIT_POST_TIME_LIMIT: 'time_limit',
+    DEFAULT_POST_EDIT_TIME_LIMIT: 300,
     MENTION_CHANNELS: 'mention.channels',
     MENTION_MORE_CHANNELS: 'mention.morechannels',
     MENTION_MEMBERS: 'mention.members',