net: Use stl utilities from the base namespace

net/base/network_activity_monitor_unittest.cc

 // Copyright (c) 2014 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 "net/base/network_activity_monitor.h"
 
 #include <stdint.h>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 101 matching lines @@
         FROM_HERE,
         base::Bind(&IncrementBytesSent, bytes_sent));
     threads[thread_num]->task_runner()->PostTask(
         FROM_HERE,
         base::Bind(&VerifyBytesSentIsMultipleOf, bytes_sent));
     threads[thread_num]->task_runner()->PostTask(
         FROM_HERE,
         base::Bind(&VerifyBytesReceivedIsMultipleOf, bytes_received));
   }
 
-  STLDeleteElements(&threads);
+  base::STLDeleteElements(&threads);
 
   NetworkActivityMonitor* monitor = NetworkActivityMonitor::GetInstance();
   EXPECT_EQ(num_increments * bytes_received, monitor->GetBytesReceived());
   EXPECT_EQ(num_increments * bytes_sent, monitor->GetBytesSent());
 }
 
 }  // namespace test
 
 }  // namespace net