Added unit test for HostDaemonFacade.

remoting/webapp/js_proto/sinon_proto.js

Index: remoting/webapp/js_proto/sinon_proto.js
diff --git a/remoting/webapp/js_proto/sinon_proto.js b/remoting/webapp/js_proto/sinon_proto.js
index a34d76aff4c913f490b452d34bacfa181401c25b..c0aac4c8c45d4d3499a1c1df872d1fbf2688d31b 100644
--- a/remoting/webapp/js_proto/sinon_proto.js
+++ b/remoting/webapp/js_proto/sinon_proto.js
@@ -73,7 +73,7 @@ sinon.spy = function() {};
  * the following can be used to add the sinon.spy functions:
  *   {(sinon.Spy|function():void)}
  *
- * @constructor
+ * @interface
  */
 sinon.Spy = function() {};
 
@@ -81,13 +81,13 @@ sinon.Spy = function() {};
 sinon.Spy.prototype.callCount;
 
 /** @type {boolean} */
-sinon.Spy.prototype.called = false;
+sinon.Spy.prototype.called;
 
 /** @type {boolean} */
-sinon.Spy.prototype.calledOnce = false;
+sinon.Spy.prototype.calledOnce;
 
 /** @type {boolean} */
-sinon.Spy.prototype.calledTwice = false;
+sinon.Spy.prototype.calledTwice;
 
 /** @type {function(...):boolean} */
 sinon.Spy.prototype.calledWith = function() {};
@@ -99,6 +99,9 @@ sinon.Spy.prototype.reset = function() {};
 
 sinon.Spy.prototype.restore = function() {};
 
+/** @type {Array<Array<*>>} */
+sinon.Spy.prototype.args;
+
 /**
  * @param {Object} obj
  * @param {string} method
@@ -107,7 +110,11 @@ sinon.Spy.prototype.restore = function() {};
  */
 sinon.stub = function(obj, method, opt_stubFunction) {};
 
-/** @constructor */
+/**
+ * TODO(jrw): rename to |sinon.Stub| for consistency
+ * @interface
+ * @extends {sinon.Spy}
+ */
 sinon.TestStub = function() {};
 
 /** @type {function(number):{args:Array}} */