Remove use of selectors matching Apple private API names.

webrtc/modules/audio_device/ios/objc/RTCAudioSessionDelegateAdapter.mm

 /*
  *  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.
  */
 
@@ skipping 46 matching lines @@
     case AVAudioSessionRouteChangeReasonRouteConfigurationChange:
       // The set of input and output ports has not changed, but their
       // configuration has, e.g., a port’s selected data source has
       // changed. Ignore this type of route change since we are focusing
       // on detecting headset changes.
       RTCLog(@"Ignoring RouteConfigurationChange");
       break;
   }
 }
 
-- (void)audioSessionMediaServicesWereLost:(RTCAudioSession *)session {
+- (void)audioSessionMediaServerTerminated:(RTCAudioSession *)session {
 }
 
-- (void)audioSessionMediaServicesWereReset:(RTCAudioSession *)session {
+- (void)audioSessionMediaServerReset:(RTCAudioSession *)session {
 }
 
 - (void)audioSession:(RTCAudioSession *)session
     didChangeCanPlayOrRecord:(BOOL)canPlayOrRecord {
   _observer->OnCanPlayOrRecordChange(canPlayOrRecord);
 }
 
 - (void)audioSessionDidStartPlayOrRecord:(RTCAudioSession *)session {
 }
 
 - (void)audioSessionDidStopPlayOrRecord:(RTCAudioSession *)session {
 }
 
 @end