downloads/bookmarks: combine header CSS between downloads and bookmarks.

chrome/browser/resources/downloads/downloads.css

Index: chrome/browser/resources/downloads/downloads.css
diff --git a/chrome/browser/resources/downloads/downloads.css b/chrome/browser/resources/downloads/downloads.css
index dc3031b8c2c16cf447032a99a10278ea530e666b..c93ae3bcf13ac4207e066a6b9e827f8d68d9e881 100644
--- a/chrome/browser/resources/downloads/downloads.css
+++ b/chrome/browser/resources/downloads/downloads.css
@@ -2,38 +2,12 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
-header {
-  align-items: center;
-  display: flex;
-  margin: 0 12px;
-}
-
-header h2 {
-  flex: 1;
-  font-size: 1.5em;
-  margin: 15px 0;
-}
-
-#term {
-  flex: none;
-}
-
-#downloads-summary {
-  background-color: rgb(235, 239, 249);
-  border-top: 1px solid rgb(156, 194, 239);
-  display: flex;
-  padding: 5px 10px;
-}
+<include src="../search_header.css">
 
 #downloads-summary-text {
-  flex: 1;
   font-weight: bold;
 }
 
-#downloads-actions {
-  flex: none;
-}
-
 .disabled-link {
   color: #999;
   text-decoration: none;