Passed AudioMixer to AudioState::Config.

webrtc/audio/BUILD.gn

 # Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("../build/webrtc.gni")
 
@@ skipping 30 matching lines @@
 if (rtc_include_tests) {
   rtc_source_set("audio_tests") {
     testonly = true
     sources = [
       "audio_receive_stream_unittest.cc",
       "audio_send_stream_unittest.cc",
       "audio_state_unittest.cc",
     ]
     deps = [
       ":audio",
+      "../base:rtc_base_approved",

[aleloi, 2016/11/14 16:39:58]

Missed dep according to GN.

       "../modules/audio_device:mock_audio_device",
+      "../test:test_common",

[aleloi, 2016/11/14 16:39:58]

For including mock_voice_engine.

       "//testing/gmock",
       "//testing/gtest",
     ]
     if (!build_with_chromium && is_clang) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 }