CUPS: fix the edit printer dialog regression.

The 'drop-down-search-box' was extracted to 'cr-searchable-drop-down'
element in
https://chromium-review.googlesource.com/c/chromium/src/+/1145774.
But 'drop-down-search-box' was not replaced in the edit printer dialog.

Bug: 872031
Change-Id: Ia78cec9d26664a3e8d66e65c30ea6b4b0cf9117c
Reviewed-on: https://chromium-review.googlesource.com/1167722
Commit-Queue: Xiaoqian Dai <xdai@chromium.org>
Reviewed-by: Michael Giuffrida <michaelpg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582677}

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

@@ -2,6 +2,7 @@
 
 <link rel="import" href="chrome://resources/cr_elements/cr_input/cr_input.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_scrollable_behavior.html">
+<link rel="import" href="chrome://resources/cr_elements/cr_searchable_drop_down/cr_searchable_drop_down.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="cups_add_printer_dialog_util.html">
 <link rel="import" href="cups_printer_shared_css.html">
@@ -82,16 +83,16 @@
           </cr-input>
         </div>
         <div class="settings-box two-line">
-          <drop-down-search-box items="[[manufacturerList]]"
+          <cr-searchable-drop-down items="[[manufacturerList]]"
               label="$i18n{printerManufacturer}"
               value="{{activePrinter.ppdManufacturer}}">
-          </drop-down-search-box>
+          </cr-searchable-drop-down>
         </div>
         <div class="settings-box two-line">
-          <drop-down-search-box items="[[modelList]]"
+          <cr-searchable-drop-down items="[[modelList]]"
               label="$i18n{printerModel}"
               value="{{activePrinter.ppdModel}}">
-          </drop-down-search-box>
+          </cr-searchable-drop-down>
         </div>
         <div class="settings-box two-line last">
           <cr-input class="browse-file-input" readonly tabindex="-1"