A simple copy of the old mixer to a new directory. I also plan to run 'git cl format'. In another C…

webrtc/modules/modules.gyp

 # Copyright (c) 2011 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.
 
 {
   'includes': [
     '../build/common.gypi',
     'audio_coding/audio_coding.gypi',
     'audio_conference_mixer/audio_conference_mixer.gypi',
     'audio_device/audio_device.gypi',
+    'audio_mixer/audio_mixer.gypi',
     'audio_processing/audio_processing.gypi',
     'bitrate_controller/bitrate_controller.gypi',
     'congestion_controller/congestion_controller.gypi',
     'desktop_capture/desktop_capture.gypi',
     'media_file/media_file.gypi',
     'pacing/pacing.gypi',
     'remote_bitrate_estimator/remote_bitrate_estimator.gypi',
     'rtp_rtcp/rtp_rtcp.gypi',
     'utility/utility.gypi',
     'video_coding/codecs/h264/h264.gypi',
@@ skipping 94 matching lines @@
           'type': '<(gtest_target_type)',
           'defines': [
             '<@(audio_coding_defines)',
           ],
           'dependencies': [
             'acm_receive_test',
             'acm_send_test',
             'audio_coding_module',
             'audio_conference_mixer',
             'audio_device'  ,
+            'audio_mixer',
             'audio_processing',
             'audioproc_test_utils',
             'bitrate_controller',
             'builtin_audio_decoder_factory',
             'bwe_simulator',
             'cng',
             'isac_fix',
             'media_file',
             'neteq',
             'neteq_test_support',
@@ skipping 632 matching lines @@
               'sources': [
                 'modules_unittests.isolate',
               ],
             },
           ],
         }],
       ],
     }], # include_tests
   ], # conditions
 }