Add contacts-related files to WATCHLISTS.

WATCHLISTS

 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Watchlist Rules
 # Refer: http://dev.chromium.org/developers/contributing-code/watchlists
 
 # IMPORTANT: The regular expression filepath is tested against each path using
 # re.search, so it is not usually necessary to add .*.
 
@@ skipping 87 matching lines @@
     'chromeos_webui': {
       'filepath': 'chrome/browser/ui/webui/chromeos/|'\
                   'chrome/browser/resources/chromeos/',
     },
     'clang_update': {
       'filepath': 'tools/clang/scripts/update.sh'
     },
     'clipboard': {
       'filepath': 'clipboard|dnd|drag|drop',
     },
+    'contacts': {
+      'filepath': 'chrome/browser/chromeos/contacts/|'\
+                  'chrome/browser/chromeos/gdata/gdata_contacts_service',
+    },
     'content': {
       'filepath': 'content/',
     },
     'cookie_monster': {
       'filepath': 'net/cookies/|'\
         'chrome/browser/net/sqlite_persistent_cookie_store',
     },
     'disk_cache': {
       'filepath': 'net/disk_cache/|http_cache',
     },
@@ skipping 318 matching lines @@
     'chrome_frame': ['amit@chromium.org', 'grt+watch@chromium.org',
                      'robertshield@chromium.org'],
     'chrome_views': ['tfarina@chromium.org'],
     'chromedriver': ['kkania@chromium.org'],
     'chromeos' : ['oshima+watch@chromium.org',
                   'stevenjb+watch@chromium.org'],
     'chromeos_webui': ['nkostylev+watch@chromium.org'],
     'clang_update': ['fischman+watch@chromium.org', 'ukai+watch@chromium.org',
                      'glotov+watch@chromium.org'],
     'clipboard': ['dcheng@chromium.org'],
+    'contacts': ['derat+watch@chromium.org'],
     'content': ['jam@chromium.org', 'joi+watch-content@chromium.org',
                 'darin-cc@chromium.org'],
     'cookie_monster': ['erikwright@chromium.org', 'rkn@chromium.org',
                        'wtc@chromium.org'],
     'disk_cache': ['gavinp+disk@chromium.org'],
     'dns': ['mmenke@chromium.org'],
     'download': ['rdsmith+dwatch@chromium.org'],
     'downloads_ui': ['asanka@chromium.org', 'rdsmith@chromium.org'],
     'extension': ['aa@chromium.org',
                   'mihaip-chromium-reviews@chromium.org'],
@@ skipping 84 matching lines @@
                    'gbillock+watch@chromium.org',
                    'smckay+watch@chromium.org'],
     'website_settings': ['markusheintz@chromium.org'],
     'webkit': ['darin-cc@chromium.org'],
     'worker': ['jam@chromium.org'],
     'x11': ['derat+watch@chromium.org',
             'sadrul@chromium.org',
             'yusukes+watch@chromium.org'],
   },
 }