Adding details to most quic connection close calls.

net/tools/quic/quic_dispatcher.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 "net/tools/quic/quic_dispatcher.h"
 
 #include <utility>
 
 #include "base/debug/stack_trace.h"
 #include "base/logging.h"
@@ skipping 372 matching lines @@
   }
 }
 
 bool QuicDispatcher::HasPendingWrites() const {
   return !write_blocked_list_.empty();
 }
 
 void QuicDispatcher::Shutdown() {
   while (!session_map_.empty()) {
     QuicServerSession* session = session_map_.begin()->second;
-    session->connection()->SendConnectionClose(QUIC_PEER_GOING_AWAY);
+    session->connection()->SendConnectionCloseWithDetails(
+        QUIC_PEER_GOING_AWAY, "Server shutdown imminent");
     // Validate that the session removes itself from the session map on close.
     DCHECK(session_map_.empty() || session_map_.begin()->second != session);
   }
   DeleteSessions();
 }
 
 void QuicDispatcher::OnConnectionClosed(QuicConnectionId connection_id,
                                         QuicErrorCode error) {
   SessionMap::iterator it = session_map_.find(connection_id);
   if (it == session_map_.end()) {
@@ skipping 80 matching lines @@
   // send it to the time wait manager in OnUnathenticatedHeader.
   return true;
 }
 
 void QuicDispatcher::SetLastError(QuicErrorCode error) {
   last_error_ = error;
 }
 
 }  // namespace tools
 }  // namespace net