DevTools: [network] Show request start time in timing table

third_party/WebKit/Source/devtools/front_end/network/networkPanel.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 45 matching lines @@
     color: rgb(30%, 30%, 30%);
 }
 
 /* Network timing is shared between popover and network item view pane */
 
 .network-timing-table {
     width: 380px;
     border-spacing: 0;
     padding-left: 10px;
     padding-right: 10px;
+    line-height: initial;
+}
+
+.network-timing-start {
+    border-top: 5px solid transparent;
+}
+.network-timing-table-header td, .network-timing-footer td {
+    border-top: 10px solid transparent;
 }
 
 .network-timing-table-header td {
     color: #bbb;
-    border-top: 5px solid transparent;
-    border-bottom: 5px solid transparent;
 }
 
 .network-timing-table-header td:last-child {
     text-align: right;
 }
 
 .network-timing-table col.labels {
-    width: 120px;
+    width: 156px;
 }
 
 .network-timing-table col.duration {
     width: 80px;
 }
 
 .network-timing-table td {
     padding: 2px 0;
 }
 
 .network-timing-table td.caution {
     font-weight: bold;
     color: rgb(255, 128, 0);
     padding: 2px 0;
 }
 
 .network-timing-table hr.break {
     border: 0;
     height: 1px;
     background-image: linear-gradient(to right, #eee, #bbb, #eee);
 }
 
-.network-timing-footer td {
-    border-top: 8px solid transparent;
-}
-
 .network-timing-footer td:last-child {
     font-weight: bold;
     text-align: right;
 }
 
 .network-timing-row {
     position: relative;
     height: 15px;
 }
 
@@ skipping 135 matching lines @@
 
 .network-film-strip {
     border-bottom: solid 1px #cdcdcd;
     flex: none !important;
 }
 
 .network-blocked-urls {
     border-top: 1px solid #dadada;
     flex: 104px 0 0;
 }