The chromoting client logs a session-close initiated by the client itself.

remoting/webapp/me2mom/client_session.js

 // Copyright (c) 2011 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.
 
 /**
  * @fileoverview
  * Class handling creation and teardown of a remoting client session.
  *
  * This abstracts a <embed> element and controls the plugin which does the
  * actual remoting work.  There should be no UI code inside this class.  It
@@ skipping 184 matching lines @@
     this.plugin = null;
   }
 };
 
 /**
  * Deletes the <embed> element from the container and disconnects.
  *
  * @return {void} Nothing.
  */
 remoting.ClientSession.prototype.disconnect = function() {
+  // The plugin won't send a state change notification, so we explicitly log
+  // the fact that the connection has closed.
+  this.logToServer.logClientSessionStateChange(
+      remoting.ClientSession.State.CLOSED,
+      remoting.ClientSession.ConnectionError.NONE);
   if (remoting.wcs) {
     remoting.wcs.setOnIq(function(stanza) {});
     this.sendIq_(
         '<cli:iq ' +
             'to="' + this.hostJid + '" ' +
             'type="set" ' +
             'id="session-terminate" ' +
             'xmlns:cli="jabber:client">' +
           '<jingle ' +
               'xmlns="urn:xmpp:jingle:1" ' +
@@ skipping 196 matching lines @@
   return {
     'video_bandwidth': this.plugin.videoBandwidth,
     'video_frame_rate': this.plugin.videoFrameRate,
     'capture_latency': this.plugin.videoCaptureLatency,
     'encode_latency': this.plugin.videoEncodeLatency,
     'decode_latency': this.plugin.videoDecodeLatency,
     'render_latency': this.plugin.videoRenderLatency,
     'roundtrip_latency': this.plugin.roundTripLatency
   };
 };