[extension SW] Support lazy events from extension service workers.

extensions/browser/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//extensions/features/features.gni")
 
 assert(enable_extensions)
 
 group("browser") {
@@ skipping 219 matching lines @@
     "info_map.h",
     "install_flag.h",
     "io_thread_extension_message_filter.cc",
     "io_thread_extension_message_filter.h",
     "lazy_background_task_queue.cc",
     "lazy_background_task_queue.h",
     "lazy_background_task_queue_factory.cc",
     "lazy_background_task_queue_factory.h",
     "lazy_context_id.cc",
     "lazy_context_id.h",
+    "lazy_context_task_queue.h",
     "load_monitoring_extension_host_queue.cc",
     "load_monitoring_extension_host_queue.h",
     "management_policy.cc",
     "management_policy.h",
     "mojo/keep_alive_impl.cc",
     "mojo/keep_alive_impl.h",
     "mojo/service_registration.cc",
     "mojo/service_registration.h",
     "notification_types.cc",
     "notification_types.h",
@@ skipping 29 matching lines @@
     "runtime_data.h",
     "sandboxed_unpacker.cc",
     "sandboxed_unpacker.h",
     "script_execution_observer.h",
     "script_executor.cc",
     "script_executor.h",
     "serial_extension_host_queue.cc",
     "serial_extension_host_queue.h",
     "service_worker_manager.cc",
     "service_worker_manager.h",
+    "service_worker_task_queue.cc",
+    "service_worker_task_queue.h",
+    "service_worker_task_queue_factory.cc",
+    "service_worker_task_queue_factory.h",
     "state_store.cc",
     "state_store.h",
     "suggest_permission_util.cc",
     "suggest_permission_util.h",
     "uninstall_ping_sender.cc",
     "uninstall_ping_sender.h",
     "uninstall_reason.h",
     "update_observer.h",
     "url_request_util.cc",
     "url_request_util.h",
@@ skipping 274 matching lines @@
       "api/media_perception_private/media_perception_api_manager_unittest.cc",
       "api/webcam_private/visca_webcam_unittest.cc",
     ]
 
     deps += [
       "//chromeos:media_perception_proto",
       "//chromeos:test_support",
     ]
   }
 }