Merge 142127

Source/WebCore/inspector/front-end/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 22 matching lines @@
     this._model = WebInspector.debuggerModel;
 
     this.bodyElement.addEventListener("keydown", this._keyDown.bind(this), true);
     this.bodyElement.tabIndex = 0;
 }
 
 WebInspector.CallStackSidebarPane.prototype = {
     update: function(callFrames)
     {
         this.bodyElement.removeChildren();
+        delete this._statusMessageElement;
         this.placards = [];
 
         if (!callFrames) {
             var infoElement = document.createElement("div");
             infoElement.className = "info";
             infoElement.textContent = WebInspector.UIString("Not Paused");
             this.bodyElement.appendChild(infoElement);
             return;
         }
 
@@ skipping 137 matching lines @@
         contextMenu.show();
     },
 
     _restartFrame: function()
     {
         this._callFrame.restart(undefined);
     },
 
     __proto__: WebInspector.Placard.prototype
 }