Add a watchlist for clipboard/drag and drop.

WATCHLISTS

 # Copyright (c) 2013 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 16 matching lines @@
     },
     'bindings': {
       'filepath': 'Source/bindings',
     },
     'test_runner': {
       'filepath': 'Tools/DumpRenderTree/chromium/TestRunner',
     },
     'canvas': {
       'filepath': 'Source/core/html/canvas/'
     },
+    'clipboard': {
+      'filepath': 'Source/core/clipboard',
+      'filepath': 'Source/core/page/*Drag',
+      'filepath': 'Source/platform/*Drag',
+      'filepath': 'Source/platform/clipboard',
+      'filepath': 'Source/web/*Drag',
+      'filepath': 'public/platform/*Drag',
+      'filepath': 'public/web/*Drag',
+    },
     'css': {
       'filepath': 'Source/core/css',
     },
     'custom_elements': {
       'filepath': 'Source/core/dom/CustomElement' \
                   '|Source/bindings/v8/.*CustomElement',
     },
     'devtools': {
       'filepath': 'inspector|DevTools|devtools',
     },
@@ skipping 228 matching lines @@
                   'arv+blink@chromium.org',
                   'ch.dumez@samsung.com',
                   'haraken@chromium.org',
                   'japhet@chromium.org',
                   'jsbell+bindings@chromium.org',
                   'kojih@chromium.org',
                   'marja+watch@chromium.org',
                   'nbarth@chromium.org',
                   'sigbjornf@opera.com' ],
     'canvas': [ 'cabanier@adobe.com', 'aandrey+blink@chromium.org' ],
+    'clipboard': [ 'dcheng@chromium.org', ],
     'custom_elements': [ 'dominicc+watchlist@chromium.org', 'dglazkov+blink@chromium.org' ],
     'fetch': [ 'japhet@chromium.org', 'gavinp+loader@chromium.org' ],
     'layers': [ 'blink-layers+watch@chromium.org' ],
     'loader': [ 'japhet@chromium.org', 'gavinp+loader@chromium.org' ],
     'owners': [ 'abarth@chromium.org'],
     'test_runner': [ 'jochen+watch@chromium.org' ],
     'platform_graphics': [ 'jamesr@chromium.org',
                            'schenney@chromium.org',
                            'danakj@chromium.org',
                            'pdr@chromium.org',
@@ skipping 57 matching lines @@
     'activity_logger': [ 'watchdog-blink-watchlist@google.com' ],
     'webp': [ 'urvang@google.com',
               'jzern@chromium.org',
               'skal@google.com',
               'vikasa@google.com' ],
     'css_grid_layout': [ 'svillar@igalia.com', 'jfernandez@igalia.com', 'rego@igalia.com' ],
     'fragment_layout': [ 'mstensho+blink@opera.com' ],
     'table_layout': [ 'mstensho+blink@opera.com' ],
   },
 }