Add a Record button to the web-app if the host supports video recording.

remoting/webapp/toolbar.js

Index: remoting/webapp/toolbar.js
diff --git a/remoting/webapp/toolbar.js b/remoting/webapp/toolbar.js
index 8e901776899c311314f3d51bd59941040bce81d3..e75bef165daae68e0dc54b8ab5a7e218d56ec6aa 100644
--- a/remoting/webapp/toolbar.js
+++ b/remoting/webapp/toolbar.js
@@ -52,7 +52,8 @@ remoting.Toolbar = function(toolbar) {
       document.getElementById('screen-resize-to-client'),
       document.getElementById('screen-shrink-to-fit'),
       document.getElementById('new-connection'),
-      document.getElementById('toggle-full-screen'));
+      document.getElementById('toggle-full-screen'),
+      null);
 
   window.addEventListener('mousemove', remoting.Toolbar.onMouseMove, false);
   window.addEventListener('resize', this.center.bind(this), false);