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

chrome/browser/resources/pdf/browser_api.js

 // Copyright 2015 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.
 
 'use strict';
 
 /**
  * Returns a promise that will resolve to the default zoom factor.
  * @param {!Object} streamInfo The stream object pointing to the data contained
  *     in the PDF.
@@ skipping 132 matching lines @@
     if (!(this.zoomBehavior_ == BrowserApi.ZoomBehavior.MANAGE ||
           this.zoomBehavior_ == BrowserApi.ZoomBehavior.PROPAGATE_PARENT))
       return;
 
     chrome.tabs.onZoomChange.addListener(function(zoomChangeInfo) {
       if (zoomChangeInfo.tabId != this.streamInfo_.tabId)
         return;
       listener(zoomChangeInfo.newZoomFactor);
     }.bind(this));
   }
-};
+}
 
 /**
  * Enumeration of ways to manage zoom changes.
  * @enum {number}
  */
 BrowserApi.ZoomBehavior = {
   NONE: 0,
   MANAGE: 1,
   PROPAGATE_PARENT: 2
 };
@@ skipping 65 matching lines @@
  * @return {Promise<BrowserApi>} A promise to a BrowserApi instance for the
  *     current environment.
  */
 function createBrowserApi() {
   if (location.origin === 'chrome://print') {
     return createBrowserApiForPrintPreview();
   }
 
   return createBrowserApiForMimeHandlerView();
 }