chrome: Use stl utilities from the base namespace

chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry_unittest.cc

 // Copyright (c) 2012 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 "extensions/browser/api/declarative_webrequest/webrequest_rules_registry.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <string>
@@ skipping 270 matching lines @@
   std::unique_ptr<net::URLRequest> http_request(
       context.CreateRequest(http_url, net::DEFAULT_PRIORITY, NULL));
   WebRequestData request_data(http_request.get(), ON_BEFORE_REQUEST);
   matches = registry->GetMatches(request_data);
   EXPECT_EQ(2u, matches.size());
 
   std::set<WebRequestRule::GlobalRuleId> matches_ids;
   for (std::set<const WebRequestRule*>::const_iterator it = matches.begin();
        it != matches.end(); ++it)
     matches_ids.insert((*it)->id());
-  EXPECT_TRUE(ContainsKey(matches_ids, std::make_pair(kExtensionId, kRuleId1)));
-  EXPECT_TRUE(ContainsKey(matches_ids, std::make_pair(kExtensionId, kRuleId2)));
+  EXPECT_TRUE(
+      base::ContainsKey(matches_ids, std::make_pair(kExtensionId, kRuleId1)));
+  EXPECT_TRUE(
+      base::ContainsKey(matches_ids, std::make_pair(kExtensionId, kRuleId2)));
 
   GURL foobar_url("http://www.foobar.com");
   std::unique_ptr<net::URLRequest> foobar_request(
       context.CreateRequest(foobar_url, net::DEFAULT_PRIORITY, NULL));
   request_data.request = foobar_request.get();
   matches = registry->GetMatches(request_data);
   EXPECT_EQ(1u, matches.size());
   WebRequestRule::GlobalRuleId expected_pair =
       std::make_pair(kExtensionId, kRuleId2);
   EXPECT_EQ(expected_pair, (*matches.begin())->id());
@@ skipping 506 matching lines @@
   // This is a correct match.
   GURL url2("http://foo.com/index.html");
   std::unique_ptr<net::URLRequest> request2(
       context.CreateRequest(url2, net::DEFAULT_PRIORITY, NULL));
   WebRequestData request_data2(request2.get(), ON_BEFORE_REQUEST);
   deltas = registry->CreateDeltas(NULL, request_data2, false);
   EXPECT_EQ(1u, deltas.size());
 }
 
 }  // namespace extensions