Add self to ChromeOS input watchlists.

Change-Id: I91dd66a2086c615b6bda59bb8f988970801cd937
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2619121
Auto-Submit: Kenton Lam <kentonlam@google.com>
Commit-Queue: John Palmer <jopalmer@chromium.org>
Reviewed-by: John Palmer <jopalmer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#841909}

WATCHLISTS

@@ -2839,6 +2839,7 @@
                   'yhanada+watch@chromium.org',
                   'yusukes+watch@chromium.org'],
     'textinput_chromeos': ['keithlee+watch@chromium.org',
+                           'kentonlam+watch@google.com',
                            'nona+watch@chromium.org',
                            'shuchen+watch@chromium.org',
                            'tranbaoduy+watch@chromium.org',
@@ -2869,6 +2870,7 @@
     'video_capture': ['chfremer+watch@chromium.org',
                       'rijubrata.bhaumik@intel.com'],
     'virtual_keyboard': ['dfaden+virtualkb@google.com',
+                         'kentonlam+watch@google.com',
                          'shend+watch@chromium.org',
                          'tranbaoduy+watch@chromium.org',
                          'yhanada+watchvk@chromium.org'],