Update Chromoting to use /third_party/closure_compiler.

remoting/webapp/crd/js/it2me_service.js

Index: remoting/webapp/crd/js/it2me_service.js
diff --git a/remoting/webapp/crd/js/it2me_service.js b/remoting/webapp/crd/js/it2me_service.js
index 9e881b83076cc2cb2ad46f00680668cb09c2eb5d..6d2d35574c0c096193966001ea0e5ed278256cc0 100644
--- a/remoting/webapp/crd/js/it2me_service.js
+++ b/remoting/webapp/crd/js/it2me_service.js
@@ -79,8 +79,8 @@ remoting.It2MeService.prototype.onConnectExternal_ = function(port) {
       default:
         throw new Error('Unsupported port - ' + port.name);
     }
-  } catch (e) {
-    var error = /**@type {Error} */ e;
+  } catch (/** @type {*} */ e) {
+    var error = /**@type {Error} */ (e);
     console.error(error);
     port.disconnect();
   }
@@ -111,8 +111,8 @@ remoting.It2MeService.prototype.onWebappConnect_ = function(port) {
       }
     }
     throw new Error('No matching hangout connection found for ' + port.name);
-  } catch (e) {
-    var error = /** @type {Error} */ e;
+  } catch (/** @type {*} */ e) {
+    var error = /** @type {Error} */ (e);
     console.error(error);
     port.disconnect();
   }
@@ -173,4 +173,4 @@ remoting.It2MeService.prototype.handleExternalHelpeeConnection_ =
       new remoting.HostInstaller(),
       this.onHelpeeChannelDisconnected.bind(this));
   this.helpee_.init();
-};
+};