Use a direct include of strings headers in remoting/.

remoting/host/disconnect_window_win.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 <windows.h>
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/process_util.h"
-#include "base/string_util.h"
+#include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/scoped_gdi_object.h"
 #include "base/win/scoped_hdc.h"
 #include "base/win/scoped_select_object.h"
 #include "remoting/host/client_session_control.h"
 #include "remoting/host/host_window.h"
 #include "remoting/host/ui_strings.h"
 #include "remoting/host/win/core_resource.h"
 
 namespace remoting {
@@ skipping 369 matching lines @@
 
 } // namespace
 
 // static
 scoped_ptr<HostWindow> HostWindow::CreateDisconnectWindow(
     const UiStrings& ui_strings) {
   return scoped_ptr<HostWindow>(new DisconnectWindowWin(ui_strings));
 }
 
 }  // namespace remoting