extensions: Use stl utilities from the base namespace

extensions/browser/api/declarative/declarative_rule_unittest.cc

 // Copyright (c) 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 "extensions/browser/api/declarative/declarative_rule.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/test/values_test_util.h"
 #include "base/values.h"
@@ skipping 102 matching lines @@
   }
 
   void GetURLMatcherConditionSets(
       URLMatcherConditionSet::Vector* condition_sets) const {
     if (condition_set.get())
       condition_sets->push_back(condition_set);
   }
 
   bool IsFulfilled(const MatchData& match_data) const {
     if (condition_set_id != -1 &&
-        !ContainsKey(match_data.url_matches, condition_set_id))
+        !base::ContainsKey(match_data.url_matches, condition_set_id))
       return false;
     return match_data.value <= max_value;
   }
 
   static std::unique_ptr<FulfillableCondition> Create(
       const Extension* extension,
       URLMatcherConditionFactory* url_matcher_condition_factory,
       const base::Value& condition,
       std::string* error) {
     std::unique_ptr<FulfillableCondition> result(new FulfillableCondition());
@@ skipping 282 matching lines @@
                       extension.get(),
                       base::Time(),
                       json_rule,
                       base::Bind(AtLeastOneCondition),
                       &error);
   EXPECT_FALSE(rule);
   EXPECT_EQ("No conditions", error);
 }
 
 }  // namespace extensions