Eradicate keyIndentifier from devtools/*

third_party/WebKit/Source/devtools/front_end/sources/CallStackSidebarPane.js

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 407 matching lines @@
         } else {
             this._statusMessageElement.removeChildren();
             this._statusMessageElement.appendChild(status);
         }
     },
 
     _keyDown: function(event)
     {
         if (event.altKey || event.shiftKey || event.metaKey || event.ctrlKey)
             return;
-        if (event.keyIdentifier === "Up" && this._selectPreviousCallFrameOnStack() || event.keyIdentifier === "Down" && this._selectNextCallFrameOnStack())
+        if (event.key === "ArrowUp" && this._selectPreviousCallFrameOnStack() || event.key === "ArrowDown" && this._selectNextCallFrameOnStack())
             event.consume(true);
     },
 
     __proto__: WebInspector.SidebarPane.prototype
 }
 
 /**
  * @constructor
  * @extends {WebInspector.UIList.Item}
  * @param {string} functionName
@@ skipping 28 matching lines @@
         var uiLocation = liveLocation.uiLocation();
         if (!uiLocation)
             return;
         var text = uiLocation.linkText();
         this.setSubtitle(text.trimMiddle(30));
         this.subtitleElement.title = text;
     },
 
     __proto__: WebInspector.UIList.Item.prototype
 }