Use a direct include of strings headers in remoting/.

remoting/protocol/jingle_session.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/protocol/jingle_session.h"
 
 #include "base/bind.h"
 #include "base/rand_util.h"
 #include "base/stl_util.h"
-#include "base/string_number_conversions.h"
+#include "base/strings/string_number_conversions.h"
 #include "base/time.h"
 #include "remoting/base/constants.h"
 #include "remoting/jingle_glue/iq_sender.h"
 #include "remoting/protocol/authenticator.h"
 #include "remoting/protocol/channel_authenticator.h"
 #include "remoting/protocol/channel_multiplexer.h"
 #include "remoting/protocol/content_description.h"
 #include "remoting/protocol/jingle_messages.h"
 #include "remoting/protocol/jingle_session_manager.h"
 #include "remoting/protocol/session_config.h"
@@ skipping 607 matching lines @@
     DCHECK_NE(state_, FAILED);
 
     state_ = new_state;
     if (event_handler_)
       event_handler_->OnSessionStateChange(new_state);
   }
 }
 
 }  // namespace protocol
 }  // namespace remoting