The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6072bcf5e577ca68eae15767dc43f9e65decb383

commit 6072bcf5e577ca68eae15767dc43f9e65decb383
Author: Bailey Berro <baileyberro@chromium.org>
Date: Tue Jul 24 23:01:03 2018

Introduce cr-searchable-drop-down polymer component.

This change takes the drop-down-search-box from the "Add Cups Printer"
dialog and makes it a cr-element so that it can be used elsewhere.

- Updates cups_add_printers_dialog to use cr-searchable-drop-down

Bug:  866146 
Test: browser_tests
Change-Id: Ib0d953c3dbb1f51dad94a73451eb924d12d1b39e
Reviewed-on: https://chromium-review.googlesource.com/1145774
Commit-Queue: Bailey Berro <baileyberro@chromium.org>
Reviewed-by: Scott Chen <scottchen@chromium.org>
Reviewed-by: Xiaoqian Dai <xdai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577722}
[modify] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog.html
[modify] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog_util.html
[modify] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog_util.js
[modify] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/chrome/test/data/webui/cr_elements/cr_elements_browsertest.js
[add] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/chrome/test/data/webui/cr_elements/cr_searchable_drop_down_tests.js
[modify] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/chrome/test/data/webui/settings/cups_printer_page_tests.js
[modify] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/ui/webui/resources/cr_elements/BUILD.gn
[add] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/ui/webui/resources/cr_elements/cr_searchable_drop_down/BUILD.gn
[add] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/ui/webui/resources/cr_elements/cr_searchable_drop_down/cr_searchable_drop_down.html
[add] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/ui/webui/resources/cr_elements/cr_searchable_drop_down/cr_searchable_drop_down.js
[modify] https://crrev.com/6072bcf5e577ca68eae15767dc43f9e65decb383/ui/webui/resources/cr_elements_resources.grdp