Move coder, file_player, and file_recorder to webrtc/voice_engine

.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.
 
 # The location of the build configuration file.
 buildconfig = "//build/config/BUILDCONFIG.gn"
@@ skipping 14 matching lines @@
   "//webrtc/modules/audio_coding:isac_fix_test",
   "//webrtc/modules/audio_coding:isac_test",
   "//webrtc/modules/audio_coding:webrtc_opus_fec_test",
   "//webrtc/modules/audio_device/*",
   "//webrtc/modules/audio_mixer/*",
   "//webrtc/voice_engine:level_indicator",
   "//webrtc/modules/audio_coding:ilbc_test",
   "//webrtc/modules/audio_coding:isac",
   "//webrtc/modules/audio_coding:isac_api_test",
   "//webrtc/modules/audio_coding:isac_switch_samprate_test",
+  "//webrtc/voice_engine:audio_coder",
+  "//webrtc/voice_engine:file_player",
+  "//webrtc/voice_engine:file_recorder",
 ]
 
 # These are the list of GN files that run exec_script. This whitelist exists
 # to force additional review for new uses of exec_script, which is strongly
 # discouraged except for gypi_to_gn calls.
 exec_script_whitelist = [
   "//build/config/BUILD.gn",
   "//build/config/android/BUILD.gn",
   "//build/config/android/config.gni",
   "//build/config/android/internal_rules.gni",
@@ skipping 13 matching lines @@
   "//build/toolchain/concurrent_links.gni",
   "//build/toolchain/gcc_toolchain.gni",
   "//build/toolchain/mac/BUILD.gn",
   "//build/toolchain/win/BUILD.gn",
   "//third_party/boringssl/BUILD.gn",
   "//third_party/openh264/BUILD.gn",
   "//third_party/opus/BUILD.gn",
   "//webrtc/modules/video_render/BUILD.gn",
   "//webrtc/modules/video_render/BUILD.gn",
 ]