chrome: Use stl utilities from the base namespace

chrome/browser/local_discovery/service_discovery_device_lister.cc

 // Copyright 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 "chrome/browser/local_discovery/service_discovery_device_lister.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 47 matching lines @@
     delegate_->OnDeviceCacheFlushed();
     return;
   }
 
   if (update == ServiceWatcher::UPDATE_REMOVED) {
     delegate_->OnDeviceRemoved(service_name);
     return;
   }
 
   // If there is already a resolver working on this service, don't add one.
-  if (ContainsKey(resolvers_, service_name)) {
+  if (base::ContainsKey(resolvers_, service_name)) {
     VLOG(1) << "Resolver already exists, service_name: " << service_name;
     return;
   }
 
   VLOG(1) << "Adding resolver for service_name: " << service_name;
   bool added = (update == ServiceWatcher::UPDATE_ADDED);
   std::unique_ptr<ServiceResolver> resolver =
       service_discovery_client_->CreateServiceResolver(
           service_name,
           base::Bind(&ServiceDiscoveryDeviceLister::OnResolveComplete,
@@ skipping 34 matching lines @@
 void ServiceDiscoveryDeviceLister::CreateServiceWatcher() {
   service_watcher_ =
       service_discovery_client_->CreateServiceWatcher(
           service_type_,
           base::Bind(&ServiceDiscoveryDeviceLister::OnServiceUpdated,
                      weak_factory_.GetWeakPtr()));
   service_watcher_->Start();
 }
 
 }  // namespace local_discovery