Add AudioDirectiveHandler timed tests.

components/copresence/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.
 
 static_library("copresence") {
   sources = [
     "copresence_constants.cc",
     "copresence_manager.cc",
     "copresence_manager_impl.cc",
     "copresence_switches.cc",
     "copresence_switches.h",
     "handlers/audio/audio_directive_handler.cc",
     "handlers/audio/audio_directive_handler.h",
     "handlers/audio/audio_directive_list.cc",
     "handlers/audio/audio_directive_list.h",
+    "handlers/audio/tick_clock_ref_counted.cc",
+    "handlers/audio/tick_clock_ref_counted.h",
     "handlers/directive_handler.cc",
     "handlers/directive_handler.h",
     "mediums/audio/audio_manager.h",
     "mediums/audio/audio_manager_impl.cc",
     "mediums/audio/audio_manager_impl.h",
     "mediums/audio/audio_player.h",
     "mediums/audio/audio_player_impl.cc",
     "mediums/audio/audio_player_impl.h",
     "mediums/audio/audio_recorder.h",
     "mediums/audio/audio_recorder_impl.cc",
@@ skipping 10 matching lines @@
   ]
 
   deps = [
     "//base",
     "//components/copresence/proto",
     "//content",
     "//media",
     "//net",
   ]
 }