[DevTools] Remove preventFollow and special checks for links throughout frontend.

third_party/WebKit/Source/devtools/front_end/main/Main.js

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.com).
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * 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
@@ skipping 380 matching lines @@
   }
 
   _postDocumentKeyDown(event) {
     if (event.handled)
       return;
 
     var document = event.target && event.target.ownerDocument;
     var target = document ? document.deepActiveElement() : null;
     if (target) {
       var anchor = target.enclosingNodeOrSelfWithNodeName('a');
-      if (anchor && anchor.preventFollow)
+      if (anchor)
         event.preventDefault();
     }
 
     if (!UI.Dialog.hasInstance() && UI.inspectorView.currentPanelDeprecated()) {
       UI.inspectorView.currentPanelDeprecated().handleShortcut(event);
       if (event.handled) {
         event.consume(true);
         return;
       }
     }
@@ skipping 583 matching lines @@
    * @override
    * @return {?Element}
    */
   settingElement() {
     return UI.SettingsUI.createSettingCheckbox(
         Common.UIString('Show rulers'), Common.moduleSetting('showMetricsRulers'));
   }
 };
 
 new Main.Main();