WebUI: Fix violations of no-extra-semi lint rule.

ui/webui/resources/js/webui_resource_test.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * Tests that an observation matches the expected value.
  * @param {Object} expected The expected value.
  * @param {Object} observed The actual value.
  * @param {string=} opt_message Optional message to include with a test
  *     failure.
@@ skipping 180 matching lines @@
       if (!isAsyncTest)
         continueTesting();
     } else {
       done = true;
       endTests(cleanTestRun);
     }
     if (!done) {
       domAutomationController.setAutomationId(1);
       domAutomationController.send('PENDING');
     }
-  };
+  }
 
   exports.runTests = runTests;
 })(this);
 
 /**
  * Signals completion of a test.
  * @param {boolean} success Indicates if the test completed successfully.
  */
 function endTests(success) {
   domAutomationController.setAutomationId(1);
   domAutomationController.send(success ? 'SUCCESS' : 'FAILURE');
 }
 
 window.onerror = function() {
   endTests(false);
 };