Provide a MockConnection constructor that takes connection_id,

net/quic/quic_dispatcher.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 "net/quic/quic_dispatcher.h"
 
 #include <errno.h>
 
 #include "base/debug/stack_trace.h"
 #include "base/logging.h"
@@ skipping 267 matching lines @@
     // packets.
     QuicVersion version = header.versions.front();
     time_wait_list_manager_->AddConnectionIdToTimeWait(connection_id, version,
                                                        nullptr);
     DCHECK(time_wait_list_manager_->IsConnectionIdInTimeWait(connection_id));
     HandlePacketForTimeWait(header);
 
     return nullptr;
   }
 
-  DVLOG(1) << "Created new session for " << connection_id;
+  DVLOG(1) << "Created new session for connection ID " << connection_id;
   session_map_.insert(std::make_pair(connection_id, session));
 
   return session;
 }
 
 void QuicDispatcher::OnUnauthenticatedHeader(const QuicPacketHeader& header) {
   DCHECK(time_wait_list_manager_->IsConnectionIdInTimeWait(
       header.public_header.connection_id));
   time_wait_list_manager_->ProcessPacket(current_server_address_,
                                          current_client_address_,
@@ skipping 119 matching lines @@
   // be parsed correctly.
   framer_.set_version(time_wait_list_manager_->GetQuicVersionFromConnectionId(
       header.connection_id));
 
   // Continue parsing the packet to extract the sequence number.  Then
   // send it to the time wait manager in OnUnathenticatedHeader.
   return true;
 }
 
 }  // namespace net