Fix IWYU violators that don't include scoped_ptr.h in Windows build.

content/renderer/p2p/filtering_network_manager_unittest.cc

 // Copyright 2015 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/renderer/p2p/filtering_network_manager.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/test/test_simple_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "content/renderer/p2p/empty_network_manager.h"
 #include "media/base/media_permission.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/webrtc/base/ipaddress.h"
 
 using NetworkList = rtc::NetworkManager::NetworkList;
 
 namespace {
@@ skipping 326 matching lines @@
       {STOP_UPDATING, NO_SIGNAL},
       {MOCK_NETWORKS_CHANGED, SIGNAL_ENUMERATION_ALLOWED},
       {STOP_UPDATING, NO_SIGNAL},
       {MOCK_NETWORKS_CHANGED, NO_SIGNAL},
   };
 
   RunTests(tests, arraysize(tests));
 }
 
 }  // namespace content