Use a direct include of strings headers in chromeos/.

chromeos/dbus/gsm_sms_client.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 "chromeos/dbus/gsm_sms_client.h"
 
 #include <map>
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
-#include "base/stringprintf.h"
 #include "base/stl_util.h"
+#include "base/strings/stringprintf.h"
 #include "base/values.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/dbus/fake_gsm_sms_client.h"
 #include "dbus/bus.h"
 #include "dbus/message.h"
 #include "dbus/object_proxy.h"
 #include "dbus/values_util.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace chromeos {
@@ skipping 227 matching lines @@
   DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type);
 
   FakeGsmSMSClient* fake = new FakeGsmSMSClient();
   fake->set_sms_test_message_switch_present(
       CommandLine::ForCurrentProcess()->HasSwitch(
           chromeos::switches::kSmsTestMessages));
   return fake;
 }
 
 }  // namespace chromeos