Remove window.status plumbing, it's unused and the spec says it's a dummy

third_party/WebKit/public/web/WebViewClient.h

 /*
  * Copyright (C) 2009 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 127 matching lines @@
                                      WebTextDirection supplemental_text_dir) {}
 
   // Hide notifation popup for form validation messages.
   virtual void HideValidationMessage() {}
 
   // Move the existing notifation popup to the new anchor position.
   virtual void MoveValidationMessage(const WebRect& anchor_in_viewport) {}
 
   // UI ------------------------------------------------------------------
 
-  // Called when script modifies window.status
-  virtual void SetStatusText(const WebString&) {}
-
   // Called when hovering over an anchor with the given URL.
   virtual void SetMouseOverURL(const WebURL&) {}
 
   // Called when keyboard focus switches to an anchor with the given URL.
   virtual void SetKeyboardFocusURL(const WebURL&) {}
 
   // Called to determine if drag-n-drop operations may initiate a page
   // navigation.
   virtual bool AcceptsLoadDrops() { return true; }
 
@@ skipping 97 matching lines @@
                                   bool page_changed) override {}
   void Show(WebNavigationPolicy) override {}
   virtual WebWidgetClient* WidgetClient() { return this; }
 
  protected:
 };
 
 }  // namespace blink
 
 #endif