chrome: Use stl utilities from the base namespace

chrome/browser/browsing_data/mock_browsing_data_database_helper.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 "chrome/browser/browsing_data/mock_browsing_data_database_helper.h"
 
 #include "base/callback.h"
 #include "base/stl_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 10 matching lines @@
   ASSERT_FALSE(callback.is_null());
   ASSERT_TRUE(callback_.is_null());
   callback_ = callback;
 }
 
 void MockBrowsingDataDatabaseHelper::DeleteDatabase(
     const std::string& origin,
     const std::string& name) {
   ASSERT_FALSE(callback_.is_null());
   std::string key = origin + ":" + name;
-  ASSERT_TRUE(ContainsKey(databases_, key));
+  ASSERT_TRUE(base::ContainsKey(databases_, key));
   last_deleted_origin_ = origin;
   last_deleted_db_ = name;
   databases_[key] = false;
 }
 
 void MockBrowsingDataDatabaseHelper::AddDatabaseSamples() {
   storage::DatabaseIdentifier id1 =
       storage::DatabaseIdentifier::Parse("http_gdbhost1_1");
   response_.push_back(BrowsingDataDatabaseHelper::DatabaseInfo(
       id1, "db1", "description 1", 1, base::Time()));
@@ skipping 14 matching lines @@
     pair.second = true;
 }
 
 bool MockBrowsingDataDatabaseHelper::AllDeleted() {
   for (const auto& pair : databases_) {
     if (pair.second)
       return false;
   }
   return true;
 }