Alphabetically sort PrinterEntryList

- Alphabetically sort PrinterEntries, which applies to both Saved
  printers and nearby printers.
- Updates browser tests.

Bug: 965721
Test: end to end manual, browsertest
Change-Id: I6ee45d6d91ae51dca0cc4ef5479bbf9490f82fa6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1706880
Commit-Queue: jimmy gong <jimmyxgong@chromium.org>
Reviewed-by: Bailey Berro <baileyberro@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#679798}

chrome/browser/resources/settings/printing_page/cups_printers_entry_list.html

@@ -2,6 +2,7 @@
 
 <link rel="import" href="chrome://resources/html/list_property_update_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-list/iron-list.html">
+<link rel="import" href="cups_printer_dialog_util.html">
 <link rel="import" href="cups_printer_types.html">
 <link rel="import" href="cups_printers_browser_proxy.html">
 <link rel="import" href="cups_printers_entry.html">

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

@@ -59,6 +59,11 @@ Polymer({
             item =>this.matchesSearchTerm_(item.printerInfo,this.searchTerm)) :
         this.printers.slice();
 
+    updatedPrinters.sort((first, second) => {
+      return settings.printing.alphabeticalSort(
+          first.printerInfo, second.printerInfo);
+    });
+
     this.updateList('filteredPrinters_', printer => printer.printerInfo,
         updatedPrinters);
   },

chrome/test/data/webui/settings/chromeos/cups_printer_landing_page_tests.js

@@ -190,10 +190,10 @@ suite('CupsSavedPrintersTests', function() {
 
   setup(function() {
     printerList = [
+      createCupsPrinterInfo('google', '4', 'id4'),
       createCupsPrinterInfo('test1', '1', 'id1'),
       createCupsPrinterInfo('test2', '2', 'id2'),
       createCupsPrinterInfo('test3', '3', 'id3'),
-      createCupsPrinterInfo('google', '4', 'id4'),
     ];
 
     cupsPrintersBrowserProxy =
@@ -410,7 +410,7 @@ suite('CupsNearbyPrintersTests', function() {
     ];
     const discoveredPrinterList = [
       createCupsPrinterInfo('test3', '3', 'id3'),
-      createCupsPrinterInfo('google', '4', 'id4'),
+      createCupsPrinterInfo('test4', '4', 'id4'),
     ];
 
     return cupsPrintersBrowserProxy.whenCalled('startDiscoveringPrinters')