Clear the clipboard closing Incognito window

chrome/chrome_browser.gypi

 # Copyright 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 440 matching lines @@
         'browser/chrome_page_zoom.cc',
         'browser/chrome_page_zoom.h',
         'browser/chrome_page_zoom_constants.cc',
         'browser/chrome_page_zoom_constants.h',
         'browser/chrome_quota_permission_context.cc',
         'browser/chrome_quota_permission_context.h',
         'browser/chrome_to_mobile_service.cc',
         'browser/chrome_to_mobile_service.h',
         'browser/chrome_to_mobile_service_factory.cc',
         'browser/chrome_to_mobile_service_factory.h',
+        'browser/clipboard/incognito_marker.cc',
+        'browser/clipboard/incognito_marker.h',
         'browser/command_observer.h',
         'browser/command_updater.cc',
         'browser/command_updater.h',
         'browser/command_updater_delegate.h',
         'browser/common/cancelable_request.cc',
         'browser/common/cancelable_request.h',
         'browser/component_updater/component_updater_configurator.cc',
         'browser/component_updater/component_updater_configurator.h',
         'browser/component_updater/component_unpacker.cc',
         'browser/component_updater/component_unpacker.h',
@@ skipping 2656 matching lines @@
           'variables': {
             'jni_gen_dir': 'chrome',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
       ],
      },
     ],
   ],
 }