Add dominickn to ARC intent owners, and update WATCHLIST.

Bug: None
Change-Id: I3032cf6514dbe29d44092b871e12b2a022dc67c6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2639417Reviewed-by: David Jacobo <djacobo@chromium.org>
Commit-Queue: Dominick Ng <dominickn@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845340}

WATCHLISTS

@@ -133,7 +133,8 @@
     },
     'apps_intent_helper': {
       'filepath': 'chrome/browser/apps/intent_helper/|'\
-                  'chrome/browser/chromeos/apps/intent_helper/'
+                  'chrome/browser/chromeos/apps/intent_helper/|'\
+                  'components/arc/intent_helper/'
     },
     'arc': {
       'filepath': 'arc/',

components/arc/intent_helper/OWNERS

 djacobo@chromium.org
+dominickn@chromium.org
 
 per-file *_mojom_traits*.*=set noparent
 per-file *_mojom_traits*.*=file://ipc/SECURITY_OWNERS