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

chrome/browser/resources/feedback/js/event_handler.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.
 
 // <include src="data.js">
 
 /**
  * @type {number}
  * @const
  */
@@ skipping 180 matching lines @@
   }
 
   /**
    * Handles the event when the feedback UI window corresponding to this
    * FeedbackRequest instance is closed.
    */
   onWindowClosed() {
     if (!this.reportIsBeingSent_)
       this.isRequestCanceled_ = true;
   }
-};
+}
 
 /**
  * Function to determine whether or not a given extension id is whitelisted to
  * invoke the feedback UI. If the extension is whitelisted, the callback to
  * start the Feedback UI will be called.
  * @param {string} id the id of the sender extension.
  * @param {Function} startFeedbackCallback The callback function that will
  *     will start the feedback UI.
  * @param {Object} feedbackInfo The feedback info object to pass to the
  *     start feedback UI callback.
@@ skipping 79 matching lines @@
         // Observe when the window is closed.
         appWindow.onClosed.addListener(function() {
           request.onWindowClosed();
         });
       });
 }
 
 chrome.runtime.onMessage.addListener(feedbackReadyHandler);
 chrome.runtime.onMessageExternal.addListener(requestFeedbackHandler);
 chrome.feedbackPrivate.onFeedbackRequested.addListener(startFeedbackUI);