[CUPS] Implement the CUPS printer PPD file picker in the manufacturer and model dialog.

chrome/browser/resources/settings/printing_page/cups_printers_browser_proxy.js

 // Copyright 2016 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.
 
 /**
  * @fileoverview A helper object used from the "CUPS printing" section to
  * interact with the browser.
  */
 
 /**
  * @typedef {{
  *   printerId: string,
  *   printerName: string,
  *   printerDescription: string,
  *   printerManufacturer: string,
  *   printerModel: string,
  *   printerStatus: string,
  *   printerAddress: string,
  *   printerProtocol: string,
- *   printerQueue: string
+ *   printerQueue: string,
+ *   printerPPDPath: string

[michaelpg, 2016/09/15 03:01:39]

alpha?

[xdai1, 2016/09/16 21:19:32]

Done.

  * }}
  */
 var CupsPrinterInfo;
 
 /**
  * @typedef {{
  *   printerList: !Array<!CupsPrinterInfo>,
  * }}
  */
 var CupsPrintersList;
@@ skipping 13 matching lines @@
      * @param {string} printerId
      * @param {string} printerName
      */
     updateCupsPrinter: function(printerId, printerName) {},
 
     /**
      * @param {string} printerId
      */
     removeCupsPrinter: function(printerId) {},
 
+    /**
+     * @return {!Promise<string>} the full path of the printer PPD file.

[michaelpg, 2016/09/15 03:01:39]

capitalize description

[xdai1, 2016/09/16 21:19:32]

Done.

+     */
+    getCupsPrinterPPDPath: function() {},
   };
 
   /**
    * @constructor
    * @implements {settings.CupsPrintersBrowserProxy}
    */
   function CupsPrintersBrowserProxyImpl() {}
   cr.addSingletonGetter(CupsPrintersBrowserProxyImpl);
 
   CupsPrintersBrowserProxyImpl.prototype = {
-    /** override */
+    /** @override */
     getCupsPrintersList: function() {
       return cr.sendWithPromise('getCupsPrintersList');
     },
 
-    /** override */
+    /** @override */
     updateCupsPrinter: function(printerId, printerName) {
       chrome.send('updateCupsPrinter', [printerId, printerName]);
     },
 
-    /** override */
+    /** @override */
     removeCupsPrinter: function(printerId) {
       chrome.send('removeCupsPrinter', [printerId]);
     },
+
+    /** @override */
+    getCupsPrinterPPDPath: function() {
+      return cr.sendWithPromise('selectPPDFile');
+    },
   };
 
   return {
     CupsPrintersBrowserProxy: CupsPrintersBrowserProxy,
     CupsPrintersBrowserProxyImpl: CupsPrintersBrowserProxyImpl,
   };
 });