Remove unloaded profile hash store initialization,

chrome/browser/prefs/pref_hash_store_impl.h

 // Copyright 2013 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_PREFS_PREF_HASH_STORE_IMPL_H_
 #define CHROME_BROWSER_PREFS_PREF_HASH_STORE_IMPL_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 36 matching lines @@
   virtual ~PrefHashStoreImpl();
 
   // Clears the contents of this PrefHashStore. |IsInitialized()| will return
   // false after this call.
   void Reset();
 
   // PrefHashStore implementation.
   virtual scoped_ptr<PrefHashStoreTransaction> BeginTransaction() OVERRIDE;
   virtual void CommitPendingWrite() OVERRIDE;
 
-  // Returns the current version of this hash store.
-  StoreVersion GetCurrentVersion() const;
-
  private:
   class PrefHashStoreTransactionImpl;
 
   const PrefHashCalculator pref_hash_calculator_;
   scoped_ptr<HashStoreContents> contents_;
   const bool initial_hashes_dictionary_trusted_;
 
   // True if hashes have been modified since the last call to
   // CommitPendingWriteIfRequired().
   bool has_pending_write_;
 
   DISALLOW_COPY_AND_ASSIGN(PrefHashStoreImpl);
 };
 
 #endif  // CHROME_BROWSER_PREFS_PREF_HASH_STORE_IMPL_H_