Fix watchlist definition for clipboard.

WATCHLISTS

 # Copyright (c) 2011 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
 
 
 {
   'WATCHLIST_DEFINITIONS': {
@@ skipping 285 matching lines @@
                   '|views/controls/textfield/.*'
     },
     'omnibox': {
       'filepath': 'chrome/browser/autocomplete/.*'\
                   '|chrome/browser/ui/.*/omnibox/.*'
     },
     'message_loop': {
       'filepath': 'base/message_.*'
     },
     'clipboard': {
-      'filepath': 'clipboard',
-      'filepath': 'dnd',
-      'filepath': 'drag',
-      'filepath': 'drop',
+      'filepath': 'clipboard|dnd|drag|drop',
     },
   },
 
   'WATCHLISTS': {
     'this_file': ['nirnimesh@chromium.org'],
     'valgrind': ['timurrrr@chromium.org',
                  'stuartmorgan+watch@chromium.org',
                  'glider@chromium.org'],
     'base': ['brettw-cc@chromium.org'],
     'browser_main': ['brettw-cc@chromium.org'],
@@ skipping 99 matching lines @@
     'browser_compositor': ['backer@chromium.org', 'vollick@chromium.org',
                            'piman+watch@chromium.org'],
     'textinput': ['penghuang+watch@chromium.org',
                   'suzhe@chromium.org',
                   'yusukes+watch@chromium.org'],
     'omnibox': ['suzhe@chromium.org'],
     'message_loop': ['sadrul@chromium.org'],
     'clipboard': ['dcheng@chromium.org'],
   },
 }