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

chrome/test/chromedriver/commands.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/chromedriver/commands.h"
 
 #include <list>
 
 #include "base/logging.h"  // For CHECK macros.
-#include "base/stringprintf.h"
+#include "base/strings/stringprintf.h"
 #include "base/sys_info.h"
 #include "base/values.h"
 #include "chrome/test/chromedriver/capabilities.h"
 #include "chrome/test/chromedriver/chrome/chrome.h"
 #include "chrome/test/chromedriver/chrome/chrome_android_impl.h"
 #include "chrome/test/chromedriver/chrome/chrome_desktop_impl.h"
 #include "chrome/test/chromedriver/chrome/device_manager.h"
 #include "chrome/test/chromedriver/chrome/devtools_event_listener.h"
 #include "chrome/test/chromedriver/chrome/status.h"
 #include "chrome/test/chromedriver/chrome/version.h"
@@ skipping 144 matching lines @@
     std::string* out_session_id) {
   std::vector<std::string> session_ids;
   session_map->GetKeys(&session_ids);
   for (size_t i = 0; i < session_ids.size(); ++i) {
     scoped_ptr<base::Value> unused_value;
     std::string unused_session_id;
     quit_command.Run(params, session_ids[i], &unused_value, &unused_session_id);
   }
   return Status(kOk);
 }