[shill] Add cmasone to watchlist

BUG=None
TEST=watchlists.py

Change-Id: Ic6b160c67967c76d022ee75ce5ed9e89f736c572
diff --git a/WATCHLISTS b/WATCHLISTS
index 0db23f9..c8eaad9 100644
--- a/WATCHLISTS
+++ b/WATCHLISTS
@@ -9,7 +9,8 @@
     },
   },
   'WATCHLISTS': {
-    'all': ['petkov@chromium.org',
+    'all': ['cmasone@chromium.org',
+            'petkov@chromium.org',
             'pstew@chromium.org',
             'quiche@chromium.org']
   },