Add support for real audio output to mojo.

media/audio/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("//media/media_options.gni")
 
 # When libpulse is not directly linked, use stubs to allow for dlopening of the
 # binary.
 if (!link_pulseaudio) {
   action("pulse_generate_stubs") {
@@ skipping 47 matching lines @@
     "audio_output_dispatcher.cc",
     "audio_output_dispatcher.h",
     "audio_output_dispatcher_impl.cc",
     "audio_output_dispatcher_impl.h",
     "audio_output_ipc.cc",
     "audio_output_ipc.h",
     "audio_output_proxy.cc",
     "audio_output_proxy.h",
     "audio_output_resampler.cc",
     "audio_output_resampler.h",
+    "audio_output_stream_sink.cc",
+    "audio_output_stream_sink.h",
     "audio_power_monitor.cc",
     "audio_power_monitor.h",
     "audio_source_diverter.h",
     "fake_audio_consumer.cc",
     "fake_audio_consumer.h",
     "fake_audio_input_stream.cc",
     "fake_audio_input_stream.h",
     "fake_audio_log_factory.h",
     "fake_audio_log_factory.cc",
     "fake_audio_manager.cc",
@@ skipping 239 matching lines @@
       "win/core_audio_util_win_unittest.cc",
     ]
   }
 
   if (use_alsa) {
     sources += [
       "alsa/alsa_output_unittest.cc",
     ]
   }
 }