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

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

Index: chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js
diff --git a/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js b/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js
index b8dc24498eb27f9aa1ed0bdceab67cbd6de089fa..a390c4791a07d22f2aabd98273b499b127640e94 100644
--- a/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js
+++ b/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.js
@@ -84,6 +84,7 @@ Polymer({
          printerProtocol: 'ipp',
          printerQueue: '',
          printerStatus: '',
+         printerPPDPath: '',

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

nit: keep alphabetized?

[xdai1, 2016/09/16 21:19:31]

Done.

         };
       },
     },
@@ -187,6 +188,21 @@ Polymer({
   },
 
   /** @private */
+  onBrowseFile_: function() {
+    settings.CupsPrintersBrowserProxyImpl.getInstance().
+        getCupsPrinterPPDPath().then(this.printerPPDPathChanged_.bind(this));
+  },
+
+  /**
+   * @param {string} path
+   * @private
+   */
+  printerPPDPathChanged_: function(path) {
+    this.newPrinter.printerPPDPath = path;
+    this.$$('paper-input').value = this.getBaseName_(path);
+  },
+
+  /** @private */
   switchToManualAddDialog_: function() {
     this.$$('add-printer-dialog').close();
     this.fire('open-manually-add-printer-dialog');
@@ -202,6 +218,15 @@ Polymer({
     this.$$('add-printer-dialog').close();
     this.fire('open-configuring-printer-dialog');
   },
+
+  /**
+   * @param {string} path The full path of the file
+   * @return {string} The base name of the file
+   * @private
+   */
+  getBaseName_: function(path) {
+    return path.substring(path.lastIndexOf('/') + 1);
+  },
 });
 
 Polymer({