Fix cups manufacturer and model dropdowns.

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

Index: chrome/browser/resources/settings/printing_page/cups_add_printer_dialog_util.html
diff --git a/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog_util.html b/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog_util.html
index f08c5e7b3e3f81f5233fe074b8c7bc919eb50fa1..14c914290c01429696832dff42e1dba0fedd1f2c 100644
--- a/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog_util.html
+++ b/chrome/browser/resources/settings/printing_page/cups_add_printer_dialog_util.html
@@ -58,9 +58,11 @@
     <paper-input-container no-label-float>
       <input is="iron-input" type="search" on-tap="onTap_"
           on-search="onInputValueChanged_" on-change="onChange_" incremental>
-      <paper-icon-button suffix id="searchIcon" icon="cr:search" hidden>
+      <paper-icon-button suffix id="searchIcon" icon="cr:search" on-tap="onTap_"
+                         hidden>
       </paper-icon-button>
-      <paper-icon-button suffix id="dropdownIcon" icon="cr:arrow-drop-down">
+      <paper-icon-button suffix id="dropdownIcon" icon="cr:arrow-drop-down"
+                         on-tap="onTap_">

[dpapad, 2017/01/27 22:24:25]

Instead of adding the onTap_ listener three times, could you add it in the
parent element <paper-input-container> instead, once?

[Dan Beam, 2017/01/27 22:50:32]

+1, yeah, that seems cleaner

[Carlson, 2017/01/31 18:39:34]

Good idea, done.

       </paper-icon-button>
     </paper-input-container>
     <iron-dropdown horizontal-align="left" vertical-align="top"