Support layout testing Web Notifications from Document and Worker contexts.

content/shell/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("//build/config/ui.gni")
 import("//tools/grit/grit_rule.gni")
 import("//tools/grit/repack.gni")
 if (is_android) {
   import("//build/config/android/config.gni")
@@ skipping 59 matching lines @@
     "browser/shell_login_dialog.cc",
     "browser/shell_login_dialog.h",
     "browser/shell_login_dialog_mac.mm",
     "browser/shell_mac.mm",
     "browser/shell_message_filter.cc",
     "browser/shell_message_filter.h",
     "browser/shell_net_log.cc",
     "browser/shell_net_log.h",
     "browser/shell_network_delegate.cc",
     "browser/shell_network_delegate.h",
+    "browser/shell_notification_manager.cc",
+    "browser/shell_notification_manager.h",
     "browser/shell_platform_data_aura.cc",
     "browser/shell_platform_data_aura.h",
     "browser/shell_plugin_service_filter.cc",
     "browser/shell_plugin_service_filter.h",
     "browser/shell_quota_permission_context.cc",
     "browser/shell_quota_permission_context.h",
     "browser/shell_resource_dispatcher_host_delegate.cc",
     "browser/shell_resource_dispatcher_host_delegate.h",
     "browser/shell_speech_recognition_manager_delegate.cc",
     "browser/shell_speech_recognition_manager_delegate.h",
@@ skipping 359 matching lines @@
   }
 
   if (!is_android || !is_android_webview_build) {
     # Some tests rely on this tool. It might be nicer if these tests relied on
     # image diff rather than having content shell depend on it.
     datadeps = [
       "//tools/imagediff($host_toolchain)",
     ]
   }
 }