Use a direct include of strings headers in remoting/.

remoting/host/disconnect_window_gtk.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 <gtk/gtk.h>
 #include <math.h>
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
-#include "base/string_util.h"
+#include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "remoting/host/client_session_control.h"
 #include "remoting/host/host_window.h"
 #include "remoting/host/ui_strings.h"
 #include "ui/base/gtk/gtk_signal.h"
 
 namespace remoting {
 
 namespace {
 
@@ skipping 266 matching lines @@
 
 }  // namespace
 
 // static
 scoped_ptr<HostWindow> HostWindow::CreateDisconnectWindow(
     const UiStrings& ui_strings) {
   return scoped_ptr<HostWindow>(new DisconnectWindowGtk(ui_strings));
 }
 
 }  // namespace remoting