content: Use stl utilities from the base namespace

content/browser/appcache/appcache_service_impl.cc

 // Copyright 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 "content/browser/appcache/appcache_service_impl.h"
 
 #include <functional>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 397 matching lines @@
     quota_client_ = new AppCacheQuotaClient(this);
     quota_manager_proxy_->RegisterClient(quota_client_);
   }
 }
 
 AppCacheServiceImpl::~AppCacheServiceImpl() {
   DCHECK(backends_.empty());
   FOR_EACH_OBSERVER(Observer, observers_, OnServiceDestructionImminent(this));
   for (auto* helper : pending_helpers_)
     helper->Cancel();
-  STLDeleteElements(&pending_helpers_);
+  base::STLDeleteElements(&pending_helpers_);
   if (quota_client_)
     quota_client_->NotifyAppCacheDestroyed();
 
   // Destroy storage_ first; ~AppCacheStorageImpl accesses other data members
   // (special_storage_policy_).
   storage_.reset();
 }
 
 void AppCacheServiceImpl::Initialize(
     const base::FilePath& cache_directory,
@@ skipping 89 matching lines @@
   backends_.insert(
       BackendMap::value_type(backend_impl->process_id(), backend_impl));
 }
 
 void AppCacheServiceImpl::UnregisterBackend(
     AppCacheBackendImpl* backend_impl) {
   backends_.erase(backend_impl->process_id());
 }
 
 }  // namespace content