Update Chromoting to use /third_party/closure_compiler.

remoting/webapp/crd/js/fullscreen_v2.js

Index: remoting/webapp/crd/js/fullscreen_v2.js
diff --git a/remoting/webapp/crd/js/fullscreen_v2.js b/remoting/webapp/crd/js/fullscreen_v2.js
index afe2b4fb06f210ed8bf8ec45d0c4f3f59b251c4c..ea20f9000f7185ce7554154ac9890fc1bbec28dc 100644
--- a/remoting/webapp/crd/js/fullscreen_v2.js
+++ b/remoting/webapp/crd/js/fullscreen_v2.js
@@ -76,10 +76,16 @@ remoting.FullscreenAppsV2.prototype.isActive = function() {
   return chrome.app.window.current().isFullscreen();
 };
 
+/**
+ * @param {function(boolean=):void} callback
+ */
 remoting.FullscreenAppsV2.prototype.addListener = function(callback) {
   this.eventSource_.addEventListener(this.kEventName_, callback);
 };
 
+/**
+ * @param {function(boolean=):void} callback
+ */
 remoting.FullscreenAppsV2.prototype.removeListener = function(callback) {
   this.eventSource_.removeEventListener(this.kEventName_, callback);
 };