chrome/browser/value_store/value_store_util.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_VALUE_STORE_VALUE_STORE_UTIL_H_
   6 #define CHROME_BROWSER_VALUE_STORE_VALUE_STORE_UTIL_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/scoped_ptr.h"
  11 #include "chrome/browser/value_store/value_store.h"
  12
  13 namespace value_store_util {
  14
  15 // Returns a copy of |key| as a scoped_ptr. Useful for creating keys for
  16 // ValueStore::Error.
  17 scoped_ptr<std::string> NewKey(const std::string& key);
  18
  19 // Returns an empty scoped_ptr. Useful for creating empty keys for
  20 // ValueStore::Error.
  21 scoped_ptr<std::string> NoKey();
  22
  23 // Return an empty Error. Useful for creating ValueStore::Error-less
  24 // ValueStore::Read/WriteResults.
  25 scoped_ptr<ValueStore::Error> NoError();
  26
  27 }  // namespace value_store_util
  28
  29 #endif  // CHROME_BROWSER_VALUE_STORE_VALUE_STORE_UTIL_H_