Use a direct include of strings headers in chromeos/.

chromeos/network/geolocation_handler.cc

 // Copyright (c) 2013 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 "chromeos/network/geolocation_handler.h"
 
 #include "base/bind.h"
-#include "base/string_number_conversions.h"
+#include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/shill_manager_client.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace chromeos {
 
 GeolocationHandler::GeolocationHandler()
     : wifi_enabled_(false),
       weak_ptr_factory_(this) {
@@ skipping 123 matching lines @@
       std::string channel_str;
       if (entry->GetString(shill::kGeoChannelProperty, &channel_str))
         base::StringToInt(channel_str, &wap.channel);
       wifi_access_points_.push_back(wap);
     }
   }
   geolocation_received_time_ = base::Time::Now();
 }
 
 }  // namespace chromeos