Revert "Update includes for webrtc/{base => rtc_base} rename (2/3)"

webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCDataChannel+Private.h

 /*
  *  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.
  */
 
 #import "WebRTC/RTCDataChannel.h"
 
 #include "webrtc/api/datachannelinterface.h"
-#include "webrtc/rtc_base/scoped_ref_ptr.h"
+#include "webrtc/base/scoped_ref_ptr.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
 @interface RTCDataBuffer ()
 
 /**
  * The native DataBuffer representation of this RTCDatabuffer object. This is
  * needed to pass to the underlying C++ APIs.
  */
 @property(nonatomic, readonly) const webrtc::DataBuffer *nativeDataBuffer;
@@ skipping 15 matching lines @@
     nativeDataChannelStateForState:(RTCDataChannelState)state;
 
 + (RTCDataChannelState)dataChannelStateForNativeState:
     (webrtc::DataChannelInterface::DataState)nativeState;
 
 + (NSString *)stringForState:(RTCDataChannelState)state;
 
 @end
 
 NS_ASSUME_NONNULL_END