Remove use of stl_util's STLDeleteContainerPairSecondPointers from content/.

content/browser/renderer_host/p2p/socket_host_udp.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_UDP_H_
 #define CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_UDP_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 34 matching lines @@
 
   // P2PSocketHost overrides.
   bool Init(const net::IPEndPoint& local_address,
             uint16_t min_port,
             uint16_t max_port,
             const P2PHostAndIPEndPoint& remote_address) override;
   void Send(const net::IPEndPoint& to,
             const std::vector<char>& data,
             const rtc::PacketOptions& options,
             uint64_t packet_id) override;
-  P2PSocketHost* AcceptIncomingTcpConnection(
+  std::unique_ptr<P2PSocketHost> AcceptIncomingTcpConnection(
       const net::IPEndPoint& remote_address,
       int id) override;
   bool SetOption(P2PSocketOption option, int value) override;
 
  private:
   friend class P2PSocketHostUdpTest;
 
   typedef std::set<net::IPEndPoint> ConnectedPeerSet;
 
   struct PendingPacket {
@@ skipping 47 matching lines @@
 
   // Callback object that returns a new socket when invoked.
   DatagramServerSocketFactory socket_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(P2PSocketHostUdp);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_P2P_SOCKET_HOST_UDP_H_