[Cleanup] Remove StringPrintf from global namespace

chrome/browser/policy/policy_browsertest.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 <algorithm>
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 1256 matching lines @@
 
   // Extensions that are force-installed come from an update URL, which defaults
   // to the webstore. Use a mock URL for this test with an update manifest
   // that includes "good.crx".
   base::FilePath path =
       base::FilePath(kTestExtensionsDir).Append(kGoodCrxManifestName);
   GURL url(URLRequestMockHTTPJob::GetMockUrl(path));
 
   // Setting the forcelist extension should install "good.crx".
   base::ListValue forcelist;
-  forcelist.Append(base::Value::CreateStringValue(StringPrintf(
+  forcelist.Append(base::Value::CreateStringValue(base::StringPrintf(
       "%s;%s", kGoodCrxId, url.spec().c_str())));
   PolicyMap policies;
   policies.Set(key::kExtensionInstallForcelist, POLICY_LEVEL_MANDATORY,
                POLICY_SCOPE_USER, forcelist.DeepCopy());
   content::WindowedNotificationObserver observer(
       chrome::NOTIFICATION_EXTENSION_INSTALLED,
       content::NotificationService::AllSources());
   UpdateProviderPolicy(policies);
   observer.Wait();
   content::Details<const extensions::Extension> details = observer.details();
@@ skipping 656 matching lines @@
                  this));
 
   MessageLoop::current()->Run();
 }
 
 INSTANTIATE_TEST_CASE_P(MediaStreamDevicesControllerBrowserTestInstance,
                         MediaStreamDevicesControllerBrowserTest,
                         testing::Bool());
 
 }  // namespace policy