PDF Plugin: Add compile targets for a few more files.

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 118 matching lines @@
   /**
    * Returns how to manage the zoom.
    * @return {BrowserApi.ZoomBehavior} How to manage zoom.
    */
   getZoomBehavior() {
     return this.zoomBehavior_;
   }
 
   /**
    * Adds an event listener to be notified when the browser zoom changes.
-   * @param {function} listener The listener to be called with the new zoom
+   * @param {!Function} listener The listener to be called with the new zoom
    *     factor.
    */
   addZoomEventListener(listener) {
     if (!(this.zoomBehavior_ == BrowserApi.ZoomBehavior.MANAGE ||
           this.zoomBehavior_ == BrowserApi.ZoomBehavior.PROPAGATE_PARENT))
       return;
 
-    chrome.tabs.onZoomChange.addListener(function(zoomChangeInfo) {
+    chrome.tabs.onZoomChange.addListener(function(info) {
+      var zoomChangeInfo =
+          /** @type {{tabId: number, newZoomFactor: number}} */ (info);
       if (zoomChangeInfo.tabId != this.streamInfo_.tabId)
         return;
       listener(zoomChangeInfo.newZoomFactor);
     }.bind(this));
   }
 }
 
 /**
  * Enumeration of ways to manage zoom changes.
  * @enum {number}
@@ skipping 71 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();
 }