Compile print_preview, part 1: remove all warnings

chrome/browser/resources/print_preview/previewarea/preview_area.js

 // Copyright (c) 2012 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.
 
 cr.define('print_preview', function() {
   'use strict';
 
   /**
    * Creates a PreviewArea object. It represents the area where the preview
    * document is displayed.
@@ skipping 538 matching lines @@
         cr.dispatchSimpleEvent(
             this, PreviewArea.EventType.PREVIEW_GENERATION_DONE);
         this.marginControlContainer_.showMarginControlsIfNeeded();
       }
     },
 
     /**
      * Called when the open-system-dialog button is clicked. Disables the
      * button, shows the throbber, and dispatches the OPEN_SYSTEM_DIALOG_CLICK
      * event.
-     * @param {number} pageX the x-coordinate of the page relative to the
-     *     screen.
-     * @param {number} pageY the y-coordinate of the page relative to the
-     *     screen.
-     * @param {number} pageWidth the width of the page on the screen.
-     * @param {number} viewportWidth the width of the viewport.
-     * @param {number} viewportHeight the height of the viewport.
      * @private
      */
     onOpenSystemDialogButtonClick_: function() {
       this.openSystemDialogButton_.disabled = true;
       var openSystemDialogThrobber = this.getElement().getElementsByClassName(
           PreviewArea.Classes_.OPEN_SYSTEM_DIALOG_BUTTON_THROBBER)[0];
       setIsVisible(openSystemDialogThrobber, true);
       cr.dispatchSimpleEvent(
           this, PreviewArea.EventType.OPEN_SYSTEM_DIALOG_CLICK);
     },
@@ skipping 11 matching lines @@
               this.showMessage_.bind(this, PreviewArea.MessageId_.LOADING),
               PreviewArea.LOADING_TIMEOUT_);
         }
       } else {
         this.marginControlContainer_.showMarginControlsIfNeeded();
       }
     },
 
     /**
      * Called when the preview generator begins loading the preview.
-     * @param {Event} Contains the URL to initialize the plugin to.
+     * @param {Event} event Contains the URL to initialize the plugin to.
      * @private
      */
     onPreviewStart_: function(event) {
       this.isDocumentReady_ = false;
       this.isPluginReloaded_ = false;
       if (!this.plugin_) {
         this.createPlugin_(event.previewUrl);
       } else {
         if (this.pluginType_ == PreviewArea.PluginType_.OUT_OF_PROCESS) {
           var grayscale = !this.printTicketStore_.color.getValue();
@@ skipping 133 matching lines @@
             new print_preview.Size(viewportWidth, viewportHeight));
       }
     }
   };
 
   // Export
   return {
     PreviewArea: PreviewArea
   };
 });