[DevTools] Set row background instead of the table

third_party/WebKit/Source/devtools/front_end/timeline/timelinePanel.css

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Anthony Ricaud <rik@webkit.org>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 491 matching lines @@
 }
 
 .timeline-tree-view .data-grid .data-container {
     overflow-y: scroll;
 }
 
 .timeline-tree-view .data-grid.data-grid-fits-viewport .corner {
     display: table-cell;
 }
 
-.timeline-tree-view .data-grid table.data {
-    background: white;
+.timeline-tree-view .data-grid .data-grid-odd-row {
+    background-color: transparent;
 }
 
 .timeline-tree-view .data-grid tr:not(.selected) .highlight {
     background-color: rgb(255, 230, 179);
 }
 
 .timeline-tree-view .data-grid tr:hover td:not(.bottom-filler-td) {
     background-color: rgba(0, 0, 0, 0.1);
 }
 
@@ skipping 124 matching lines @@
 
 .timeline-landing-warning-close {
     float: right;
     margin-top: -10px;
     margin-right: -13px;
 }
 
 .timeline-landing-warning span[is=ui-icon] {
     margin: -8px;
 }