Improve the style of the objc wrapper for PeerConnectionInterface::SetBitrate.

webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCPeerConnection.mm

 /*
  *  Copyright 2015 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 351 matching lines @@
 }
 
 - (void)setRemoteDescription:(RTCSessionDescription *)sdp
            completionHandler:(void (^)(NSError *error))completionHandler {
   rtc::scoped_refptr<webrtc::SetSessionDescriptionObserverAdapter> observer(
       new rtc::RefCountedObject<webrtc::SetSessionDescriptionObserverAdapter>(
           completionHandler));
   _peerConnection->SetRemoteDescription(observer, sdp.nativeDescription);
 }
 
-- (BOOL)setBitrateToMin:(NSNumber *_Nullable)minBitrateBps
-              toCurrent:(NSNumber *_Nullable)currentBitrateBps
-                  toMax:(NSNumber *_Nullable)maxBitrateBps {
+- (BOOL)setBweMinBitrateBps:(nullable NSNumber *)minBitrateBps
+          currentBitrateBps:(nullable NSNumber *)currentBitrateBps
+              maxBitrateBps:(nullable NSNumber *)maxBitrateBps {
   webrtc::PeerConnectionInterface::BitrateParameters params;
   if (minBitrateBps != nil) {
     params.min_bitrate_bps = rtc::Optional<int>(minBitrateBps.intValue);
   }
   if (currentBitrateBps != nil) {
     params.current_bitrate_bps = rtc::Optional<int>(currentBitrateBps.intValue);
   }
   if (maxBitrateBps != nil) {
     params.max_bitrate_bps = rtc::Optional<int>(maxBitrateBps.intValue);
   }
@@ skipping 223 matching lines @@
     case RTCStatsOutputLevelDebug:
       return webrtc::PeerConnectionInterface::kStatsOutputLevelDebug;
   }
 }
 
 - (rtc::scoped_refptr<webrtc::PeerConnectionInterface>)nativePeerConnection {
   return _peerConnection;
 }
 
 @end