Use a direct include of strings headers in remoting/.

remoting/host/win/message_window.cc

 // Copyright 2013 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 "remoting/host/win/message_window.h"
 
 #include "base/logging.h"
 #include "base/process_util.h"
-#include "base/stringprintf.h"
+#include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/wrapped_window_proc.h"
 
 const char kClassNameFormat[] = "Chromoting_MessageWindow_%p";
 
 namespace remoting {
 namespace win {
 
 MessageWindow::MessageWindow()
     : atom_(0),
@@ skipping 89 matching lines @@
     LRESULT message_result;
     if (delegate->HandleMessage(hwnd, message, wparam, lparam, &message_result))
       return message_result;
   }
 
   return DefWindowProc(hwnd, message, wparam, lparam);
 }
 
 }  // namespace win
 }  // namespace remoting