Remove webrtc/sound/ subdir.

PRESUBMIT.py

 # Copyright (c) 2012 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 json
 import os
 import platform
 import re
 import subprocess
 import sys
 
 
 # Directories that will be scanned by cpplint by the presubmit script.
 CPPLINT_DIRS = [
   'webrtc/audio',
   'webrtc/call',
   'webrtc/common_video',
   'webrtc/examples',
   'webrtc/modules/bitrate_controller',
   'webrtc/modules/congestion_controller',
   'webrtc/modules/pacing',
   'webrtc/modules/remote_bitrate_estimator',
   'webrtc/modules/rtp_rtcp',
   'webrtc/modules/video_coding',
   'webrtc/modules/video_processing',
-  'webrtc/sound',
   'webrtc/tools',
   'webrtc/video',
 ]
 
 # These filters will always be removed, even if the caller specifies a filter
 # set, as they are problematic or broken in some way.
 #
 # Justifications for each filter:
 # - build/c++11         : Rvalue ref checks are unreliable (false positives),
 #                         include file and feature blacklists are
@@ skipping 178 matching lines @@
   return result
 
 def _CheckNoRtcBaseDeps(input_api, gyp_files, output_api):
   pattern = input_api.re.compile(r"base.gyp:rtc_base\s*'")
   violating_files = []
   for f in gyp_files:
     gyp_exceptions = (
         'base_tests.gyp',
         'desktop_capture.gypi',
         'p2p.gyp',
-        'sound.gyp',
         'webrtc_test_common.gyp',
         'webrtc_tests.gypi',
     )
     if f.LocalPath().endswith(gyp_exceptions):
       continue
     contents = input_api.ReadFile(f)
     if pattern.search(contents):
       violating_files.append(f)
   if violating_files:
     return [output_api.PresubmitError(
@@ skipping 272 matching lines @@
     for builder in masters[master]:
       if 'presubmit' in builder:
         # Do not trigger presubmit builders, since they're likely to fail
         # (e.g. OWNERS checks before finished code review), and we're running
         # local presubmit anyway.
         pass
       else:
         try_config[master][builder] = ['defaulttests']
 
   return try_config