Remove use of stl_util's STLDeleteContainerPairSecondPointers from content/.

content/browser/renderer_host/p2p/socket_host_udp.cc

 // Copyright (c) 2012 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.
 
 #include "content/browser/renderer_host/p2p/socket_host_udp.h"
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
@@ skipping 383 matching lines @@
   // UMA to track the histograms from 1ms to 1 sec for how long a packet spends
   // in the browser process.
   UMA_HISTOGRAM_TIMES("WebRTC.SystemSendPacketDuration_UDP" /* name */,
                       base::TimeTicks::Now() - send_time /* sample */);
 
   message_sender_->Send(new P2PMsg_OnSendComplete(
       id_,
       P2PSendPacketMetrics(packet_id, transport_sequence_number, send_time)));
 }
 
-P2PSocketHost* P2PSocketHostUdp::AcceptIncomingTcpConnection(
-    const net::IPEndPoint& remote_address, int id) {
+std::unique_ptr<P2PSocketHost> P2PSocketHostUdp::AcceptIncomingTcpConnection(
+    const net::IPEndPoint& remote_address,
+    int id) {
   NOTREACHED();
   OnError();
-  return NULL;
+  return nullptr;
 }
 
 bool P2PSocketHostUdp::SetOption(P2PSocketOption option, int value) {
   DCHECK_EQ(STATE_OPEN, state_);
   switch (option) {
     case P2P_SOCKET_OPT_RCVBUF:
       return socket_->SetReceiveBufferSize(value) == net::OK;
     case P2P_SOCKET_OPT_SNDBUF:
       // Ignore any following call to set the send buffer size if we're under
       // experiment.
@@ skipping 16 matching lines @@
   net::UDPServerSocket* socket = new net::UDPServerSocket(
       GetContentClient()->browser()->GetNetLog(), net::NetLog::Source());
 #if defined(OS_WIN)
   socket->UseNonBlockingIO();
 #endif
 
   return base::WrapUnique(socket);
 }
 
 }  // namespace content