Relanding Generate localhost candidate when no STUN/TURN and portallocator has the right flag spefi…

webrtc/base/ipaddress.h

 /*
  *  Copyright 2011 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 161 matching lines @@
 bool IPIsULA(const IPAddress& ip);
 bool IPIsV4Compatibility(const IPAddress& ip);
 bool IPIsV4Mapped(const IPAddress& ip);
 
 // Returns the precedence value for this IP as given in RFC3484.
 int IPAddressPrecedence(const IPAddress& ip);
 
 // Returns 'ip' truncated to be 'length' bits long.
 IPAddress TruncateIP(const IPAddress& ip, int length);
 
+IPAddress GetLoopbackIP(int family);
+
 // Returns the number of contiguously set bits, counting from the MSB in network
 // byte order, in this IPAddress. Bits after the first 0 encountered are not
 // counted.
 int CountIPMaskBits(IPAddress mask);
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_IPADDRESS_H_