content: Use stl utilities from the base namespace

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 218 matching lines @@
     DoRead();
   }
 }
 
 void P2PSocketHostUdp::HandleReadResult(int result) {
   DCHECK_EQ(STATE_OPEN, state_);
 
   if (result > 0) {
     std::vector<char> data(recv_buffer_->data(), recv_buffer_->data() + result);
 
-    if (!ContainsKey(connected_peers_, recv_address_)) {
+    if (!base::ContainsKey(connected_peers_, recv_address_)) {
       P2PSocketHost::StunMessageType type;
       bool stun = GetStunPacketType(&*data.begin(), data.size(), &type);
       if ((stun && IsRequestOrResponse(type))) {
         connected_peers_.insert(recv_address_);
       } else if (!stun || type == STUN_DATA_INDICATION) {
         LOG(ERROR) << "Received unexpected data packet from "
                    << recv_address_.ToString()
                    << " before STUN binding is finished.";
         return;
       }
@@ skipping 13 matching lines @@
 void P2PSocketHostUdp::Send(const net::IPEndPoint& to,
                             const std::vector<char>& data,
                             const rtc::PacketOptions& options,
                             uint64_t packet_id) {
   if (!socket_) {
     // The Send message may be sent after the an OnError message was
     // sent by hasn't been processed the renderer.
     return;
   }
 
-  if (!ContainsKey(connected_peers_, to)) {
+  if (!base::ContainsKey(connected_peers_, to)) {
     P2PSocketHost::StunMessageType type = P2PSocketHost::StunMessageType();
     bool stun = GetStunPacketType(&*data.begin(), data.size(), &type);
     if (!stun || type == STUN_DATA_INDICATION) {
       LOG(ERROR) << "Page tried to send a data packet to " << to.ToString()
                  << " before STUN binding is finished.";
       OnError();
       return;
     }
 
     if (throttler_->DropNextPacket(data.size())) {
@@ skipping 151 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