DevTools: NetworkPanel: Fix timing bars alignment.

Source/devtools/front_end/network/networkLogView.css

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 88 matching lines @@
 
 .network-log-grid.data-grid .name-column {
     cursor: pointer;
 }
 
 #network-container:not(.brief-mode) .network-log-grid.data-grid td.name-column:hover {
     text-decoration: underline;
 }
 
 .network-log-grid.data-grid.small .network-graph-side {
-    height: 14px;
+    height: 19px;
 }
 
 .network-log-grid.data-grid th.sortable:active {
     background-image: none !important;
 }
 
 .network-cell-subtitle {
     font-weight: normal;
     color: gray;
 }
@@ skipping 131 matching lines @@
 
 .network-async-trace-description {
     padding: 3px 0 1px 0;
     font-style: italic;
 }
 
 /* Graph styles */
 
 .network-graph-side {
     position: relative;
-    height: 36px;
+    height: 39px;
     padding: 0;
     white-space: nowrap;
-    margin-top: 1px;
-    border-top: 1px solid transparent;
     overflow: hidden;
 }
 
 .network-graph-bar-area {
     position: absolute;
     top: 0;
     bottom: 0;
 }
 
 .network-graph-bar-area,
@@ skipping 51 matching lines @@
     text-align: left;
     margin-left: -1px;
 }
 
 .network-graph-label.after::before {
     padding-right: 2px;
     height: 6px;
     content: url(Images/graphLabelCalloutRight.png);
 }
 
+.small .network-graph-bar {
+    top: 3px;
+    bottom: 3px;
+}
+
 .network-graph-bar {
     position: absolute;
-    top: 0;
-    bottom: 0;
-    margin: auto -1px;
-    height: 12px;
+    top: 13px;
+    bottom: 13px;
+    margin-left: -1px;
     min-width: 2px;
     border-width: 1px;
     border-style: solid;
     border-color: hsl(0, 0%, 60%);
     background: linear-gradient(0deg, hsl(0, 0%, 65%), hsl(0, 0%, 80%));
 }
 
 .network-graph-bar.waiting {
     opacity: 0.5;
 }
@@ skipping 172 matching lines @@
 
 #network-container {
     overflow-y: auto;
     overflow-x: hidden;
 }
 
 /* Brief mode peculiarities. */
 #network-container.brief-mode .network-timeline-grid {
     display: none;
 }