GN: Add rtc_media_unittests

webrtc/modules/audio_device/BUILD.gn

 # Copyright (c) 2014 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 50 matching lines @@
   }
   if (is_win) {
     include_dirs += [ "win" ]
   }
   if (is_android) {
     include_dirs += [ "android" ]
   }
   defines = []
   cflags = []
   if (rtc_include_internal_audio_device) {
-    defines += [ "WEBRTC_INCLUDE_INTERNAL_AUDIO_DEVICE" ]
     sources += [
       "audio_device_impl.cc",
       "audio_device_impl.h",
     ]
     if (is_android) {
       sources += [
         "android/audio_device_template.h",
         "android/audio_manager.cc",
         "android/audio_manager.h",
         "android/audio_record_jni.cc",
@@ skipping 119 matching lines @@
     "../..:common_inherited_config",
     ":audio_device_config",
   ]
 
   if (is_clang) {
     # Suppress warnings from Chrome's Clang plugins.
     # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
     configs -= [ "//build/config/clang:find_bad_constructs" ]
   }
 }