DevTools: fix network waterfall sorting icon

third_party/WebKit/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 371 matching lines @@
 .network-waterfall-header .sort-order-icon {
     margin-right: 4px;
     background-image: url(Images/toolbarButtonGlyphs.png);
     background-size: 352px 168px;
     opacity: 0.5;
     width: 8px;
     height: 7px;
     display: none;
 }
 
+@media (-webkit-min-device-pixel-ratio: 1.1) {
+.network-waterfall-header .sort-order-icon {
+    background-image: url(Images/toolbarButtonGlyphs_2x.png);
+}
+} /* media */
+
 .network-waterfall-header .sort-ascending.sort-order-icon {
     display: block;
     background-position: -4px -111px;
 }
 
 .network-waterfall-header .sort-descending.sort-order-icon {
     display: block;
     background-position: -20px -99px;
 }