Add video frame recording capability to Chromoting hosts.

remoting/webapp/client_session.js

 // 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.
 
 /**
  * @fileoverview
  * Class handling creation and teardown of a remoting client session.
  *
  * The ClientSession class controls lifetime of the client plugin
  * object and provides the plugin with the functionality it needs to
@@ skipping 344 matching lines @@
 /**
  * Set of capabilities for which hasCapability_() can be used to test.
  *
  * @enum {string}
  */
 remoting.ClientSession.Capability = {
   // When enabled this capability causes the client to send its screen
   // resolution to the host once connection has been established. See
   // this.plugin_.notifyClientResolution().
   SEND_INITIAL_RESOLUTION: 'sendInitialResolution',
-  RATE_LIMIT_RESIZE_REQUESTS: 'rateLimitResizeRequests'
+  RATE_LIMIT_RESIZE_REQUESTS: 'rateLimitResizeRequests',
+  VIDEO_RECORDER: 'videoRecorder'
 };
 
 /**
  * The set of capabilities negotiated between the client and host.
  * @type {Array.<string>}
  * @private
  */
 remoting.ClientSession.prototype.capabilities_ = null;
 
 /**
@@ skipping 1168 matching lines @@
  */
 remoting.ClientSession.prototype.updateMouseCursorImage_ =
     function(url, hotspotX, hotspotY) {
   this.mouseCursorOverlay_.hidden = !url;
   if (url) {
     this.mouseCursorOverlay_.style.marginLeft = '-' + hotspotX + 'px';
     this.mouseCursorOverlay_.style.marginTop = '-' + hotspotY + 'px';
     this.mouseCursorOverlay_.src = url;
   }
  };