Use a direct include of strings headers in remoting/.

remoting/jingle_glue/javascript_signal_strategy.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 "remoting/jingle_glue/javascript_signal_strategy.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
-#include "base/string_number_conversions.h"
+#include "base/strings/string_number_conversions.h"
 #include "remoting/jingle_glue/xmpp_proxy.h"
 #include "third_party/libjingle/source/talk/xmllite/xmlelement.h"
 
 namespace remoting {
 
 JavascriptSignalStrategy::JavascriptSignalStrategy(const std::string& local_jid)
     : local_jid_(local_jid),
       last_id_(0) {
 }
 
@@ skipping 76 matching lines @@
 
   ObserverListBase<Listener>::Iterator it(listeners_);
   Listener* listener;
   while ((listener = it.GetNext()) != NULL) {
     if (listener->OnSignalStrategyIncomingStanza(stanza.get()))
       break;
   }
 }
 
 }  // namespace remoting