Revise ServiceWorker DevTools protocols.

content/content_browser.gypi

 # 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../device/vibration/vibration.gyp:device_vibration',
     '../device/vibration/vibration.gyp:device_vibration_mojo_bindings',
@@ skipping 1240 matching lines @@
       'browser/service_worker/service_worker_cache_scheduler.h',
       'browser/service_worker/service_worker_cache_storage.cc',
       'browser/service_worker/service_worker_cache_storage.h',
       'browser/service_worker/service_worker_cache_storage_manager.cc',
       'browser/service_worker/service_worker_cache_storage_manager.h',
       'browser/service_worker/service_worker_context_core.cc',
       'browser/service_worker/service_worker_context_core.h',
       'browser/service_worker/service_worker_context_observer.h',
       'browser/service_worker/service_worker_context_request_handler.cc',
       'browser/service_worker/service_worker_context_request_handler.h',
+      'browser/service_worker/service_worker_context_watcher.cc',
+      'browser/service_worker/service_worker_context_watcher.h',
       'browser/service_worker/service_worker_context_wrapper.cc',
       'browser/service_worker/service_worker_context_wrapper.h',
       'browser/service_worker/service_worker_controllee_request_handler.cc',
       'browser/service_worker/service_worker_controllee_request_handler.h',
       'browser/service_worker/service_worker_database.cc',
       'browser/service_worker/service_worker_database.h',
       'browser/service_worker/service_worker_database_task_manager.cc',
       'browser/service_worker/service_worker_database_task_manager.h',
       'browser/service_worker/service_worker_disk_cache.cc',
       'browser/service_worker/service_worker_disk_cache.h',
@@ skipping 716 matching lines @@
         'browser/media/media_web_contents_observer.h',
       ],
     }],
     ['OS == "linux" and use_openssl==1', {
       'dependencies': [
         '../third_party/boringssl/boringssl.gyp:boringssl',
       ],
     }],
   ],
 }