Minor ObjC header updates.

webrtc/build/ios/export_headers

 #!/usr/bin/python
 
 #  Copyright 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.
 
 """Script for exporting iOS header files."""
 
 import errno
 import optparse
 import os
 import re
 import shutil
 import sys
 
 LEGACY_HEADER_DIRS = ['talk/app/webrtc/objc/public', 'webrtc/base/objc/']
-HEADER_DIRS = ['webrtc/api/objc/', 'webrtc/base/objc/']
+HEADER_DIRS = ['webrtc/api/objc/', 'webrtc/base/objc/',
+               'webrtc/modules/audio_device/ios/objc']
 # Individual header files that should also be exported.
 LEGACY_HEADER_INCLUDES = []
 HEADER_INCLUDES = []
 # Individual header files that should not be exported.
 LEGACY_HEADER_EXCLUDES = ['talk/app/webrtc/objc/public/RTCNSGLVideoView.h']
-HEADER_EXCLUDES = ['webrtc/api/objc/avfoundationvideocapturer.h',
-                   'webrtc/api/objc/RTCNSGLVideoView.h',
-                   'webrtc/base/objc/NSString+StdString.h',
-                   'webrtc/base/objc/RTCUIApplication.h',]
+HEADER_EXCLUDES = [
+  'webrtc/api/objc/avfoundationvideocapturer.h',
+  'webrtc/api/objc/RTCNSGLVideoView.h',
+  'webrtc/base/objc/NSString+StdString.h',
+  'webrtc/base/objc/RTCUIApplication.h',
+  'webrtc/modules/audio_device/ios/objc/RTCAudioSessionDelegateAdapter.h',
+]
 
 def ExportHeaders(include_base_dir, use_legacy_headers):
   """Exports iOS header files.
 
   Creates an include directory and recreates the hierarchy for the header files
   within the include directory.
 
   Args:
     include_base_dir: directory where the include directory should be created
   """
 
   include_dir_name = 'include'
   include_path = os.path.join(include_base_dir, include_dir_name)
+  # Remove existing directory first in case files change.
+  if (os.path.exists(include_path)):
+    shutil.rmtree(include_path)
 
   script_path = sys.path[0]
   webrtc_base_path = os.path.join(script_path, '../../..')
 
   header_dirs = HEADER_DIRS
   include_headers = HEADER_INCLUDES
   exclude_headers = HEADER_EXCLUDES
   if use_legacy_headers:
     header_dirs = LEGACY_HEADER_DIRS
     include_headers = LEGACY_HEADER_INCLUDES
@@ skipping 25 matching lines @@
   parser = optparse.OptionParser()
   _, args = parser.parse_args()
   if len(args) != 2:
     parser.error('Error: Exactly 2 arguments required.')
   include_base_dir = args[0]
   use_legacy_headers = False if int(args[1]) == 0 else True
   ExportHeaders(include_base_dir, use_legacy_headers)
 
 if __name__ == '__main__':
   sys.exit(Main())