MD Downloads: replace <paper-icon-button> with <inky-text-button>

chrome/browser/resources/md_downloads/item.css

 /* Copyright 2015 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
 :host {
   display: flex;
   flex-direction: column;
 }
 
 #date {
@@ skipping 168 matching lines @@
 .is-active #controlled-by a {
   color: rgb(51, 103, 214);
 }
 
 #remove-wrapper {
   align-self: flex-start;
   margin: 0;
 }
 
 #remove {
-  --iron-icon-height: 16px;
-  --iron-icon-width: 16px;
-  --layout-inline: {
-    /* HACK(dbeam): we probably shouldn't be overriding Polymer like this. */
-  };
   color: #969696;
+  font-size: 16px;
   height: 16px;
+  line-height: 17px;  /* TODO(dbeam): why is this necesssary? */
   padding: 8px;
   width: 16px;
 }
 
 #incognito {
   bottom: 20px;
   content: -webkit-image-set(
       url(chrome://downloads/1x/incognito_marker.png) 1x,
       url(chrome://downloads/2x/incognito_marker.png) 2x);
   position: absolute;
   right: 10px;
 }