NTP4: Remove gradient while printing most visited thumbnails.

chrome/browser/resources/ntp4/most_visited_page.css

 /* Copyright (c) 2011 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.
  */
 
 .most-visited {
   position: absolute;
 }
 
 .most-visited {
@@ skipping 101 matching lines @@
   visibility: visible;
 }
 
 .thumbnail-shield {
   border-radius: 3px;
   background: -webkit-linear-gradient(rgba(255, 255, 255, 0),
                                       rgba(255, 255, 255, 0) 50%,
                                       rgba(255, 255, 255, 0.9));
 }
 
+/* TODO(dbeam): Remove this when printing of -webkit-linear-gradient() works. */
+@media print {
+  .thumbnail-shield {
+    background: none;
+  }
+}
+
 .most-visited:focus .thumbnail,
 .most-visited:hover .thumbnail {
   opacity: 0.95;
 }
 
 .most-visited:focus .thumbnail-shield,
 .most-visited:hover .thumbnail-shield,
 .most-visited:active .thumbnail-shield {
   background: -webkit-linear-gradient(rgba(255, 255, 255, 0),
                                       rgba(255, 255, 255, 0) 80%,
@@ skipping 30 matching lines @@
  * Override opacity of the tile to 1, so that the new tile animation
  * occurs simultaneously with the trash animation. */
 .tile.dragging.finishing-drag {
   opacity: 1;
 }
 
 /* Don't display the new tile until there's something to show.  */
 .blacklisted {
   opacity: 0;
 }