[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

Index: chrome/browser/resources/settings/printing_page/cups_printers_browser_proxy.js
diff --git a/chrome/browser/resources/settings/printing_page/cups_printers_browser_proxy.js b/chrome/browser/resources/settings/printing_page/cups_printers_browser_proxy.js
index d53eb12854981bcf1e8ffe7e89717e1fa2181891..e7a64aef905d4237f4a471d4c96dc852a2184e21 100644
--- a/chrome/browser/resources/settings/printing_page/cups_printers_browser_proxy.js
+++ b/chrome/browser/resources/settings/printing_page/cups_printers_browser_proxy.js
@@ -17,7 +17,8 @@
  *   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;
@@ -51,6 +52,10 @@ cr.define('settings', function() {
      */
     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() {},
   };
 
   /**
@@ -61,20 +66,25 @@ cr.define('settings', function() {
   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 {