Remove use of selectors matching Apple private API names.

webrtc/modules/audio_device/ios/objc/RTCAudioSessionTest.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 14 matching lines @@
 
 - (void)audioSessionDidEndInterruption:(RTCAudioSession *)session
                    shouldResumeSession:(BOOL)shouldResumeSession {
 }
 
 - (void)audioSessionDidChangeRoute:(RTCAudioSession *)session
            reason:(AVAudioSessionRouteChangeReason)reason
     previousRoute:(AVAudioSessionRouteDescription *)previousRoute {
 }
 
-- (void)audioSessionMediaServicesWereLost:(RTCAudioSession *)session {
+- (void)audioSessionMediaServerTerminated:(RTCAudioSession *)session {
 }
 
-- (void)audioSessionMediaServicesWereReset:(RTCAudioSession *)session {
+- (void)audioSessionMediaServerReset:(RTCAudioSession *)session {
 }
 
 - (void)audioSessionShouldConfigure:(RTCAudioSession *)session {
 }
 
 - (void)audioSessionShouldUnconfigure:(RTCAudioSession *)session {
 }
 
 @end
 
@@ skipping 160 matching lines @@
   RTCAudioSessionTest *test = [[RTCAudioSessionTest alloc] init];
   [test testZeroingWeakDelegate];
 }
 
 TEST_F(AudioSessionTest, RemoveDelegateOnDealloc) {
   RTCAudioSessionTest *test = [[RTCAudioSessionTest alloc] init];
   [test testRemoveDelegateOnDealloc];
 }
 
 }  // namespace webrtc