Use std::move() instead of .Pass() in remoting/*

remoting/signaling/server_log_entry.cc

 // Copyright 2014 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/signaling/server_log_entry.h"
 
 #include "base/logging.h"
 #include "base/sys_info.h"
 #include "remoting/base/constants.h"
 #include "third_party/webrtc/libjingle/xmllite/xmlelement.h"
@@ skipping 64 matching lines @@
       new XmlElement(QName(kChromotingXmlNamespace, kLogCommand)));
 }
 
 scoped_ptr<XmlElement> ServerLogEntry::ToStanza() const {
   scoped_ptr<XmlElement> stanza(new XmlElement(QName(
       kChromotingXmlNamespace, kLogEntry)));
   ValuesMap::const_iterator iter;
   for (iter = values_map_.begin(); iter != values_map_.end(); ++iter) {
     stanza->AddAttr(QName(std::string(), iter->first), iter->second);
   }
-  return stanza.Pass();
+  return stanza;
 }
 
 }  // namespace remoting