Implement exponential backoff for failed Me2Me authentication attempts

remoting/protocol/jingle_messages.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_messages.h"
 
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "remoting/base/constants.h"
 #include "remoting/protocol/content_description.h"
@@ skipping 48 matching lines @@
   { JingleMessage::SESSION_INITIATE, "session-initiate" },
   { JingleMessage::SESSION_ACCEPT, "session-accept" },
   { JingleMessage::SESSION_TERMINATE, "session-terminate" },
   { JingleMessage::SESSION_INFO, "session-info" },
   { JingleMessage::TRANSPORT_INFO, "transport-info" },
 };
 
 const NameMapElement<JingleMessage::Reason> kReasons[] = {
   { JingleMessage::SUCCESS, "success" },
   { JingleMessage::DECLINE, "decline" },
+  { JingleMessage::CANCEL, "cancel" },
   { JingleMessage::GENERAL_ERROR, "general-error" },
   { JingleMessage::INCOMPATIBLE_PARAMETERS, "incompatible-parameters" },
 };
 
 bool ParseCandidate(const buzz::XmlElement* element,
                     cricket::Candidate* candidate) {
   DCHECK(element->Name() == QName(kP2PTransportNamespace, "candidate"));
 
   const std::string& name = element->Attr(QName(kEmptyNamespace, "name"));
   const std::string& address = element->Attr(QName(kEmptyNamespace, "address"));
@@ skipping 355 matching lines @@
     text_elem->SetAttr(QName(kXmlNamespace, "lang"), "en");
     text_elem->SetBodyText(error_text);
     error->AddElement(text_elem);
   }
 
   return iq.Pass();
 }
 
 }  // namespace protocol
 }  // namespace remoting