chrome: Use stl utilities from the base namespace

chrome/browser/browsing_data/mock_browsing_data_cookie_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_cookie_helper.h"
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
@@ skipping 13 matching lines @@
     const net::CookieStore::GetCookieListCallback &callback) {
   ASSERT_FALSE(callback.is_null());
   ASSERT_TRUE(callback_.is_null());
   callback_ = callback;
 }
 
 void MockBrowsingDataCookieHelper::DeleteCookie(
     const net::CanonicalCookie& cookie) {
   ASSERT_FALSE(callback_.is_null());
   std::string key = cookie.Name() + "=" + cookie.Value();
-  ASSERT_TRUE(ContainsKey(cookies_, key));
+  ASSERT_TRUE(base::ContainsKey(cookies_, key));
   cookies_[key] = false;
 }
 
 void MockBrowsingDataCookieHelper::AddCookieSamples(
     const GURL& url, const std::string& cookie_line) {
   std::unique_ptr<net::CanonicalCookie> cc(net::CanonicalCookie::Create(
       url, cookie_line, base::Time::Now(), net::CookieOptions()));
 
   if (cc.get()) {
     for (const auto& cookie : cookie_list_) {
@@ skipping 17 matching lines @@
     pair.second = true;
 }
 
 bool MockBrowsingDataCookieHelper::AllDeleted() {
   for (const auto& pair : cookies_) {
     if (pair.second)
       return false;
   }
   return true;
 }