Remove use of selectors matching Apple private API names.

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

Index: webrtc/modules/audio_device/ios/objc/RTCAudioSession.mm
diff --git a/webrtc/modules/audio_device/ios/objc/RTCAudioSession.mm b/webrtc/modules/audio_device/ios/objc/RTCAudioSession.mm
index f6901844b5ae7a3b25cf0ee8c8b3aeed011cf673..4d9b9774408a52d80da7df2b054651418eec53bc 100644
--- a/webrtc/modules/audio_device/ios/objc/RTCAudioSession.mm
+++ b/webrtc/modules/audio_device/ios/objc/RTCAudioSession.mm
@@ -810,18 +810,18 @@ NSInteger const kRTCAudioSessionErrorConfiguration = -2;
 
 - (void)notifyMediaServicesWereLost {
   for (auto delegate : self.delegates) {
-    SEL sel = @selector(audioSessionMediaServicesWereLost:);
+    SEL sel = @selector(audioSessionMediaServerTerminated:);
     if ([delegate respondsToSelector:sel]) {
-      [delegate audioSessionMediaServicesWereLost:self];
+      [delegate audioSessionMediaServerTerminated:self];
     }
   }
 }
 
 - (void)notifyMediaServicesWereReset {
   for (auto delegate : self.delegates) {
-    SEL sel = @selector(audioSessionMediaServicesWereReset:);
+    SEL sel = @selector(audioSessionMediaServerReset:);
     if ([delegate respondsToSelector:sel]) {
-      [delegate audioSessionMediaServicesWereReset:self];
+      [delegate audioSessionMediaServerReset:self];
     }
   }
 }