DevTools: Replace Apple styled spinner icon with Chromium one.

Source/devtools/front_end/canvasProfiler.css

 /*
  * Copyright (C) 2012 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 45 matching lines @@
     display: block;
 }
 
 .canvas-debug-info {
     position: absolute;
     left: 0;
     right: 0;
     bottom: 6px;
 }
 
-.canvas-spinner-icon {
-    content: url(Images/spinnerSelected.gif);
+.canvas-profile-view .spinner-icon {
     position: absolute;
     width: 16px;
+    height: 16px;
     right: 4px;
     bottom: 4px;
 }
 
 .canvas-replay-log {
     position: absolute;
     top: 24px;
     left: 0;
     right: 0;
     bottom: 0;
@@ skipping 110 matching lines @@
 
 @-webkit-keyframes fadeout-odd {
     from { background-color: rgb(255, 255, 25); }
     to { background-color: rgb(255, 255, 175); }
 }
 
 @-webkit-keyframes fadeout-even {
     from { background-color: rgb(255, 255, 25); }
     to { background-color: rgb(235, 235, 120); }
 }