Revert of Adding PeerConnectionInterface::SetConfiguration method.

talk/app/webrtc/objc/public/RTCPeerConnection.h

 /*
  * libjingle
  * Copyright 2013 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
  *     this list of conditions and the following disclaimer in the documentation
  *     and/or other materials provided with the distribution.
  *  3. The name of the author may not be used to endorse or promote products
  *     derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #import "RTCPeerConnectionDelegate.h"
 
-@class RTCConfiguration;
 @class RTCDataChannel;
 @class RTCDataChannelInit;
 @class RTCICECandidate;
 @class RTCICEServers;
 @class RTCMediaConstraints;
 @class RTCMediaStream;
 @class RTCMediaStreamTrack;
 @class RTCSessionDescription;
 @protocol RTCSessionDescriptionDelegate;
 @protocol RTCStatsDelegate;
@@ skipping 50 matching lines @@
 - (void)
     setLocalDescriptionWithDelegate:(id<RTCSessionDescriptionDelegate>)delegate
                  sessionDescription:(RTCSessionDescription *)sdp;
 
 // Sets the remote session description.
 // Success or failure will be reported via RTCSessionDescriptionDelegate.
 - (void)
     setRemoteDescriptionWithDelegate:(id<RTCSessionDescriptionDelegate>)delegate
                   sessionDescription:(RTCSessionDescription *)sdp;
 
-// Sets the PeerConnection's global configuration to |configuration|.
-// Any changes to STUN/TURN servers or ICE candidate policy will affect the
-// next gathering phase, and cause the next call to createOffer to generate
-// new ICE credentials. Note that the BUNDLE and RTCP-multiplexing policies
-// cannot be changed with this method.
-- (BOOL)setConfiguration:(RTCConfiguration *)configuration;
+// Restarts or updates the ICE Agent process of gathering local candidates
+// and pinging remote candidates.
+- (BOOL)updateICEServers:(NSArray *)servers
+             constraints:(RTCMediaConstraints *)constraints;
 
 // Provides a remote candidate to the ICE Agent.
 - (BOOL)addICECandidate:(RTCICECandidate *)candidate;
 
 // Terminates all media and closes the transport.
 - (void)close;
 
 // Gets statistics for the media track. If |mediaStreamTrack| is nil statistics
 // are gathered for all tracks.
 // Statistics information will be reported via RTCStatsDelegate.
 - (BOOL)getStatsWithDelegate:(id<RTCStatsDelegate>)delegate
             mediaStreamTrack:(RTCMediaStreamTrack*)mediaStreamTrack
             statsOutputLevel:(RTCStatsOutputLevel)statsOutputLevel;
 
 #ifndef DOXYGEN_SHOULD_SKIP_THIS
 // Disallow init and don't add to documentation
 - (id)init __attribute__(
     (unavailable("init is not a supported initializer for this class.")));
 #endif /* DOXYGEN_SHOULD_SKIP_THIS */
 
 @end