Add extensions-reviews@chromium.org to the WATCHLIST for extensions.

TBR=jyasskin@chromium.org
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/16527004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@204436 0039d316-1c4b-4281-b951-d872f2087c98

WATCHLISTS

@@ -599,8 +599,8 @@
     'downloads_ui': ['asanka@chromium.org', 'benjhayden+dwatch@chromium.org'],
     'drive': ['tfarina@chromium.org'],
     'drive_resource_metadata': ['hashimoto+watch@chromium.org'],
-    'extension': ['aa@chromium.org',
-                  'chromium-apps-reviews@chromium.org'],
+    'extension': ['chromium-apps-reviews@chromium.org',
+                  'extensions-reviews@chromium.org'],
     'fileapi': ['kinuko+watch@chromium.org', 'tzik+watch@chromium.org'],
     'filebrowse': ['rginda+watch@chromium.org'],
     'ftp': ['phajdan.jr@chromium.org'],