Revert of Move FilePlayer and FileRecorder to Voice Engine

webrtc/modules/BUILD.gn

 # Copyright (c) 2016 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")
 import("audio_coding/audio_coding.gni")
@@ skipping 205 matching lines @@
       "rtp_rtcp/source/rtp_rtcp_impl_unittest.cc",
       "rtp_rtcp/source/rtp_sender_unittest.cc",
       "rtp_rtcp/source/time_util_unittest.cc",
       "rtp_rtcp/source/vp8_partition_aggregator_unittest.cc",
       "rtp_rtcp/test/testAPI/test_api.cc",
       "rtp_rtcp/test/testAPI/test_api.h",
       "rtp_rtcp/test/testAPI/test_api_audio.cc",
       "rtp_rtcp/test/testAPI/test_api_rtcp.cc",
       "rtp_rtcp/test/testAPI/test_api_video.cc",
       "utility/source/audio_frame_operations_unittest.cc",
+      "utility/source/file_player_unittests.cc",
       "utility/source/process_thread_impl_unittest.cc",
       "video_coding/codecs/test/packet_manipulator_unittest.cc",
       "video_coding/codecs/test/stats_unittest.cc",
       "video_coding/codecs/test/videoprocessor_unittest.cc",
       "video_coding/codecs/vp8/default_temporal_layers_unittest.cc",
       "video_coding/codecs/vp8/reference_picture_selection_unittest.cc",
       "video_coding/codecs/vp8/screenshare_layers_unittest.cc",
       "video_coding/codecs/vp8/simulcast_encoder_adapter_unittest.cc",
       "video_coding/codecs/vp8/simulcast_unittest.cc",
       "video_coding/codecs/vp8/simulcast_unittest.h",
@@ skipping 294 matching lines @@
         "audio_device/ios/objc/RTCAudioSessionTest.mm",
         "video_coding/codecs/h264/h264_video_toolbox_nalu_unittest.cc",
       ]
 
       ldflags = [ "-ObjC" ]
 
       # TODO(kjellander): Mac bundle files.
     }
   }
 }