components: Use stl utilities from the base namespace

components/search_engines/default_search_policy_handler.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 "components/search_engines/default_search_policy_handler.h"
 
 #include <stddef.h>
 
 #include <utility>
 
@@ skipping 179 matching lines @@
     } else {
       handlers_.push_back(new SimplePolicyHandler(
           policy_name,
           kDefaultSearchPolicyMap[i].preference_path,
           kDefaultSearchPolicyMap[i].value_type));
     }
   }
 }
 
 DefaultSearchPolicyHandler::~DefaultSearchPolicyHandler() {
-  STLDeleteElements(&handlers_);
+  base::STLDeleteElements(&handlers_);
 }
 
 bool DefaultSearchPolicyHandler::CheckPolicySettings(const PolicyMap& policies,
                                                      PolicyErrorMap* errors) {
   if (!CheckIndividualPolicies(policies, errors))
     return false;
 
   if (DefaultSearchProviderIsDisabled(policies)) {
     // Add an error for all specified default search policies except
     // DefaultSearchProviderEnabled.
@@ skipping 155 matching lines @@
 void DefaultSearchPolicyHandler::EnsureListPrefExists(
     PrefValueMap* prefs,
     const std::string& path) {
   base::Value* value;
   base::ListValue* list_value;
   if (!prefs->GetValue(path, &value) || !value->GetAsList(&list_value))
     prefs->SetValue(path, base::WrapUnique(new base::ListValue()));
 }
 
 }  // namespace policy