Add Clone and disallow copy construction for NavigationEntryImpl.

content/public/browser/navigation_entry.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_ENTRY_H_
 #define CONTENT_PUBLIC_BROWSER_NAVIGATION_ENTRY_H_
 
 #include <string>
 
 #include "base/memory/ref_counted_memory.h"
@@ skipping 14 matching lines @@
 
 // A NavigationEntry is a data structure that captures all the information
 // required to recreate a browsing state. This includes some opaque binary
 // state as provided by the WebContents as well as some clear text title and
 // URL which is used for our user interface.
 class NavigationEntry {
  public:
   virtual ~NavigationEntry() {}
 
   CONTENT_EXPORT static NavigationEntry* Create();
-  CONTENT_EXPORT static NavigationEntry* Create(const NavigationEntry& copy);

[Charlie Reis, 2015/03/12 16:51:20]

Note: This was dead code.

 
   // Page-related stuff --------------------------------------------------------
 
   // A unique ID is preserved across commits and redirects, which means that
   // sometimes a NavigationEntry's unique ID needs to be set (e.g. when
   // creating a committed entry to correspond to a to-be-deleted pending entry,
   // the pending entry's ID must be copied).
   virtual int GetUniqueID() const = 0;
 
   // The page type tells us if this entry is for an interstitial or error page.
@@ skipping 169 matching lines @@
   virtual void SetRedirectChain(const std::vector<GURL>& redirects) = 0;
   virtual const std::vector<GURL>& GetRedirectChain() const = 0;
 
   // True if this entry is restored and hasn't been loaded.
   virtual bool IsRestored() const = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_NAVIGATION_ENTRY_H_