[Chromoting] Enable jscompile for webapp unittests.

remoting/webapp/base/js/auth_init.js

Index: remoting/webapp/base/js/auth_init.js
diff --git a/remoting/webapp/base/js/auth_init.js b/remoting/webapp/base/js/auth_init.js
index c67e454143a62a48befa3f45afd8c475fbe29f5d..009edd149f4a5e7cb07bceb10cfccd856c85c70d 100644
--- a/remoting/webapp/base/js/auth_init.js
+++ b/remoting/webapp/base/js/auth_init.js
@@ -42,12 +42,14 @@ remoting.initIdentity = function(onUserInfoAvailable) {
     }
   }
 
-  remoting.identity.getUserInfo().then(function(userInfo) {
-    onUserInfoAvailable(userInfo.email, userInfo.name);
-  }).catch(function(error) {
-    onGetIdentityInfoError(
-        /** @type {remoting.Error} */ (error));
-  });
+  remoting.identity.getUserInfo().then(
+      /** @param {{email:string, name:string}} userInfo */
+      function(userInfo) {
+        onUserInfoAvailable(userInfo.email, userInfo.name);
+      }).catch(function(error) {
+        onGetIdentityInfoError(
+            /** @type {remoting.Error} */ (error));
+      });
 };
 
 /**
@@ -64,4 +66,4 @@ remoting.handleAuthFailureAndRelaunch = function() {
       window.location.reload();
     }
   });
-};
+};