Use a direct include of strings headers in chrome/test/.

chrome/test/base/chrome_test_suite.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/test/base/chrome_test_suite.h"
 
 #if defined(OS_CHROMEOS)
 #include <stdio.h>
 #include <unistd.h>
 #endif
 
 #include "base/command_line.h"
 #include "base/memory/ref_counted.h"
 #include "base/metrics/stats_table.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
-#include "base/stringprintf.h"
+#include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_content_browser_client.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_content_client.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/chrome_manifest_handlers.h"
 #include "chrome/common/extensions/permissions/chrome_api_permissions.h"
 #include "chrome/common/url_constants.h"
@@ skipping 266 matching lines @@
 #if defined(OS_MACOSX) && !defined(OS_IOS)
   base::mac::SetOverrideFrameworkBundle(NULL);
 #endif
 
   base::StatsTable::set_current(NULL);
   stats_table_.reset();
   RemoveSharedMemoryFile(stats_filename_);
 
   base::TestSuite::Shutdown();
 }