Remove all usage of -webkit-*gradient inside blink

Source/devtools/front_end/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 209 matching lines @@
 .resource-timing-view table {
     border-spacing: 21px 0;
 }
 
 .resource-timing-view .network-timing-bar {
     opacity: 1;
 }
 
 .resource-timing-view .network-timing-bar.blocking,
 .resource-timing-view .network-timing-bar.proxy {
-    background-image: -webkit-gradient(linear, left top, left bottom, from(rgb(242, 242, 194)), to(rgb(204, 204, 102)));
+    background-image: linear-gradient(to bottom, rgb(242, 242, 194), rgb(204, 204, 102));
     border-left: 1px solid rgb(204, 204, 102);
 }
 
 .resource-timing-view .network-timing-bar.dns {
-    background-image: -webkit-gradient(linear, left top, left bottom, from(rgb(194, 242, 194)), to(rgb(102, 204, 102)));
+    background-image: linear-gradient(to bottom, rgb(194, 242, 194), rgb(102, 204, 102));
     border-left: 1px solid rgb(102, 204, 102);
 }
 
 .resource-timing-view .network-timing-bar.connecting,
 .resource-timing-view .network-timing-bar.ssl {
-    background-image: -webkit-gradient(linear, left top, left bottom, from(rgb(194, 242, 242)), to(rgb(102, 204, 204)));
+    background-image: linear-gradient(to bottom, rgb(194, 242, 242), rgb(102, 204, 204));
     border-left: 1px solid rgb(102, 204, 204);
 }
 
 .resource-timing-view .network-timing-bar.sending {
-    background-image: -webkit-gradient(linear, left top, left bottom, from(rgb(194, 194, 242)), to(rgb(102, 102, 204)));
+    background-image: linear-gradient(to bottom, rgb(194, 194, 242), rgb(102, 102, 204));
     border-left: 1px solid rgb(102, 102, 204);
 }
 
 .resource-timing-view .network-timing-bar.waiting {
-    background-image: -webkit-gradient(linear, left top, left bottom, from(rgb(242, 194, 242)), to(rgb(204, 102, 204)));
+    background-image: linear-gradient(to bottom, rgb(242, 194, 242), rgb(204, 102, 204));
     border-left: 1px solid rgb(204, 102, 204);
 }
 
 .resource-timing-view .network-timing-bar.receiving {
-    background-image: -webkit-gradient(linear, left top, left bottom, from(rgb(242, 194, 194)), to(rgb(204, 102, 102)));
+    background-image: linear-gradient(to bottom, rgb(242, 194, 194), rgb(204, 102, 102));
     border-left: 1px solid rgb(204, 102, 102);
 }
 
 .resource-timing-view.visible {
     display: block;
 }
 
 .resource-websocket {
     -webkit-user-select: text;
 }
@@ skipping 55 matching lines @@
 }
 
 .panel.network .split-view {
     flex: auto;
     position: relative;
 }
 
 .network-filters-header {
     flex: 0 0 23px;
 }