Revert of Always update the omnibox URL when cancelling via onbeforeunload

content/public/browser/navigation_controller.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_NAVIGATION_CONTROLLER_H_
 #define CONTENT_PUBLIC_BROWSER_NAVIGATION_CONTROLLER_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 273 matching lines @@
   virtual int GetEntryCount() const = 0;
 
   virtual NavigationEntry* GetEntryAtIndex(int index) const = 0;
 
   // Returns the entry at the specified offset from current.  Returns nullptr
   // if out of bounds.
   virtual NavigationEntry* GetEntryAtOffset(int offset) const = 0;
 
   // Pending entry -------------------------------------------------------------
 
-  // Discards the pending and transient entries if any, and send an appropriate
-  // notification (INVALIDATE_TYPE_URL or INVALIDATE_TYPE_ALL) if they were.
+  // Discards the pending and transient entries if any.
   virtual void DiscardNonCommittedEntries() = 0;
 
   // Returns the pending entry corresponding to the navigation that is
   // currently in progress, or null if there is none.
   virtual NavigationEntry* GetPendingEntry() const = 0;
 
   // Returns the index of the pending entry or -1 if the pending entry
   // corresponds to a new navigation (created via LoadURL).
   virtual int GetPendingEntryIndex() const = 0;
 
@@ skipping 152 matching lines @@
 
  private:
   // This interface should only be implemented inside content.
   friend class NavigationControllerImpl;
   NavigationController() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_NAVIGATION_CONTROLLER_H_