Revert 176015

chrome/browser/extensions/api/storage/weak_unlimited_settings_storage.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_EXTENSIONS_API_STORAGE_WEAK_UNLIMITED_SETTINGS_STORAGE_H_
-#define CHROME_BROWSER_EXTENSIONS_API_STORAGE_WEAK_UNLIMITED_SETTINGS_STORAGE_H_
-
-#include "base/compiler_specific.h"
-#include "chrome/browser/value_store/value_store.h"
-
-namespace extensions {
-
-// A ValueStore decorator which makes calls through |Set| ignore quota.
-// "Weak" because ownership of the delegate isn't taken; this is designed to be
-// temporarily attached to storage areas.
-class WeakUnlimitedSettingsStorage : public ValueStore {
- public:
-  // Ownership of |delegate| NOT taken.
-  explicit WeakUnlimitedSettingsStorage(ValueStore* delegate);
-
-  virtual ~WeakUnlimitedSettingsStorage();
-
-  // ValueStore implementation.
-  virtual size_t GetBytesInUse(const std::string& key) OVERRIDE;
-  virtual size_t GetBytesInUse(const std::vector<std::string>& keys) OVERRIDE;
-  virtual size_t GetBytesInUse() OVERRIDE;
-  virtual ReadResult Get(const std::string& key) OVERRIDE;
-  virtual ReadResult Get(const std::vector<std::string>& keys) OVERRIDE;
-  virtual ReadResult Get() OVERRIDE;
-  virtual WriteResult Set(
-      WriteOptions options,
-      const std::string& key,
-      const Value& value) OVERRIDE;
-  virtual WriteResult Set(
-      WriteOptions options, const DictionaryValue& values) OVERRIDE;
-  virtual WriteResult Remove(const std::string& key) OVERRIDE;
-  virtual WriteResult Remove(const std::vector<std::string>& keys) OVERRIDE;
-  virtual WriteResult Clear() OVERRIDE;
-
- private:
-  // The delegate storage area, NOT OWNED.
-  ValueStore* const delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(WeakUnlimitedSettingsStorage);
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_STORAGE_WEAK_UNLIMITED_SETTINGS_STORAGE_H_