Remove Clone() from CannedBrowsingData*Helper classes

chrome/browser/browsing_data/browsing_data_local_storage_helper.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 CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_LOCAL_STORAGE_HELPER_H_
 #define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_LOCAL_STORAGE_HELPER_H_
 
 #include <list>
 #include <set>
 #include <vector>
@@ skipping 57 matching lines @@
 };
 
 // This class is a thin wrapper around BrowsingDataLocalStorageHelper that does
 // not fetch its information from the local storage tracker, but gets them
 // passed as a parameter during construction.
 class CannedBrowsingDataLocalStorageHelper
     : public BrowsingDataLocalStorageHelper {
  public:
   explicit CannedBrowsingDataLocalStorageHelper(Profile* profile);
 
-  // Return a copy of the local storage helper. Only one consumer can use the
-  // StartFetching method at a time, so we need to create a copy of the helper
-  // every time we instantiate a cookies tree model for it.
-  CannedBrowsingDataLocalStorageHelper* Clone();
-
   // Add a local storage to the set of canned local storages that is returned
   // by this helper.
   void AddLocalStorage(const GURL& origin);
 
   // Clear the list of canned local storages.
   void Reset();
 
   // True if no local storages are currently stored.
   bool empty() const;
 
   // Returns the number of local storages currently stored.
   size_t GetLocalStorageCount() const;
 
   // Returns the set of origins that use local storage.
   const std::set<GURL>& GetLocalStorageInfo() const;
 
   // BrowsingDataLocalStorageHelper implementation.
   virtual void StartFetching(
       const base::Callback<void(const std::list<LocalStorageInfo>&)>& callback)
           OVERRIDE;
   virtual void DeleteOrigin(const GURL& origin) OVERRIDE;
 
  private:
   virtual ~CannedBrowsingDataLocalStorageHelper();
 
   std::set<GURL> pending_local_storage_info_;
 
-  Profile* profile_;
-
   DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataLocalStorageHelper);
 };
 
 #endif  // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_LOCAL_STORAGE_HELPER_H_