Add a music_manager_private WATCHLIST for gab/erikwright/robertshield.

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 379 matching lines @@
     'metrics_xml_files': {
       # Subscribe to this to watch for changes to histograms.xml.
       'filepath': 'tools/metrics/.*\.xml$'
     },
     'mojo': {
       'filepath': 'mojo',
     },
     'mouse_lock': {
       'filepath': 'mouse_lock',
     },
+    'music_manager_private': {
+      'filepath' :'chrome/browser/extensions/api/music_manager_private/',
+    },
     'nacl': {
       'filepath': 'chrome/nacl/|chrome/test/nacl/|'\
         'chrome/browser/nacl_host/|chrome/common/nacl|'\
         'native_client_sdk/src/doc/',
     },
     'native_client_sdk': {
       'filepath': '^native_client_sdk/',
     },
     'net': {
       'filepath': 'net/',
@@ skipping 377 matching lines @@
     'metrics': ['jar@chromium.org',
                 'isherman@chromium.org',
                 'asvitkine+watch@chromium.org'],
     'metrics_xml_files': ['jar@chromium.org', 'asvitkine+watch@chromium.org'],
     'mojo': ['aa@chromium.org',
              'abarth@chromium.org',
              'ben+mojo@chromium.org',
              'darin@chromium.org',
              'viettrungluu+watch@chromium.org'],
     'mouse_lock': ['scheib+watch@chromium.org'],
+    'music_manager_private': ['gab+watch@chromium.org',
+                              'erikwright+watch@chromium.org',
+                              'robertshield+watch@chromium.org'],
     'nacl': ['native-client-reviews@googlegroups.com'],
     'native_client_sdk': ['sbc@chromium.org', 'binji@chromium.org'],
     'net': ['cbentzel+watch@chromium.org'],
     'net_error_list': ['mmenke@chromium.org'],
     'net_log': ['mmenke@chromium.org', 'eroman@chromium.org'],
     'npapi_headers': ['stuartmorgan@chromium.org'],
     'ntp': ['estade+watch@chromium.org', 'dbeam+watch-ntp@chromium.org',
             'pedrosimonetti+watch@chromium.org'],
     'omnibox': ['suzhe@chromium.org'],
     'options': ['dbeam+watch-options@chromium.org'],
@@ skipping 73 matching lines @@
     'webrtc_media': ['fischman+watch@chromium.org',
                      'wjia+watch@chromium.org',
                      'mcasas+watch@chromium.org'],
     'website_settings': ['markusheintz@chromium.org'],
     'worker': ['jam@chromium.org'],
     'x11': ['derat+watch@chromium.org',
             'sadrul@chromium.org',
             'yusukes+watch@chromium.org'],
   },
 }