content: Use stl utilities from the base namespace

content/browser/service_worker/service_worker_provider_host.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 "content/browser/service_worker/service_worker_provider_host.h"
 
 #include <utility>
 
 #include "base/guid.h"
 #include "base/stl_util.h"
@@ skipping 271 matching lines @@
 
 void ServiceWorkerProviderHost::AddMatchingRegistration(
     ServiceWorkerRegistration* registration) {
   // TODO(shimazu): Change CHECK to DCHECK after https://crbug.com/634222 is
   // fixed.
   CHECK(
       ServiceWorkerUtils::ScopeMatches(registration->pattern(), document_url_));
   if (!IsContextSecureForServiceWorker())
     return;
   size_t key = registration->pattern().spec().size();
-  if (ContainsKey(matching_registrations_, key))
+  if (base::ContainsKey(matching_registrations_, key))
     return;
   IncreaseProcessReference(registration->pattern());
   registration->AddListener(this);
   matching_registrations_[key] = registration;
   ReturnRegistrationForReadyIfNeeded();
 }
 
 void ServiceWorkerProviderHost::RemoveMatchingRegistration(
     ServiceWorkerRegistration* registration) {
   size_t key = registration->pattern().spec().size();
-  DCHECK(ContainsKey(matching_registrations_, key));
+  DCHECK(base::ContainsKey(matching_registrations_, key));
   DecreaseProcessReference(registration->pattern());
   registration->RemoveListener(this);
   matching_registrations_.erase(key);
 }
 
 void ServiceWorkerProviderHost::AddAllMatchingRegistrations() {
   DCHECK(context_);
   const std::map<int64_t, ServiceWorkerRegistration*>& registrations =
       context_->GetLiveRegistrations();
   for (const auto& key_registration : registrations) {
@@ skipping 351 matching lines @@
       Send(new ServiceWorkerMsg_SetControllerServiceWorker(
           render_thread_id_, provider_id(),
           GetOrCreateServiceWorkerHandle(
               associated_registration_->active_version()),
           false /* shouldNotifyControllerChange */));
     }
   }
 }
 
 }  // namespace content