Revert 176015

chrome/browser/extensions/api/storage/settings_storage_quota_enforcer.h

Index: chrome/browser/extensions/api/storage/settings_storage_quota_enforcer.h
===================================================================
--- chrome/browser/extensions/api/storage/settings_storage_quota_enforcer.h	(revision 176046)
+++ chrome/browser/extensions/api/storage/settings_storage_quota_enforcer.h	(working copy)
@@ -1,69 +0,0 @@
-// 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_SETTINGS_STORAGE_QUOTA_ENFORCER_H_
-#define CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTINGS_STORAGE_QUOTA_ENFORCER_H_
-
-#include "base/compiler_specific.h"
-#include "base/memory/weak_ptr.h"
-#include "chrome/browser/value_store/value_store.h"
-
-namespace extensions {
-
-// Enforces total quota and a per-setting quota in bytes, and a maximum number
-// of setting keys, for a delegate storage area.
-class SettingsStorageQuotaEnforcer : public ValueStore {
- public:
-  struct Limits {
-    // The total quota in bytes.
-    size_t quota_bytes;
-
-    // The quota for each individual item in bytes.
-    size_t quota_bytes_per_item;
-
-    // The maximum number of items allowed.
-    size_t max_items;
-  };
-
-  SettingsStorageQuotaEnforcer(const Limits& limits, ValueStore* delegate);
-
-  virtual ~SettingsStorageQuotaEnforcer();
-
-  // 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:
-  // Limits configuration.
-  const Limits limits_;
-
-  // The delegate storage area.
-  scoped_ptr<ValueStore> const delegate_;
-
-  // Total bytes in used by |delegate_|. Includes both key lengths and
-  // JSON-encoded values.
-  size_t used_total_;
-
-  // Map of item key to its size, including the key itself.
-  std::map<std::string, size_t> used_per_setting_;
-
-  DISALLOW_COPY_AND_ASSIGN(SettingsStorageQuotaEnforcer);
-};
-
-}  // namespace extensions
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_STORAGE_SETTINGS_STORAGE_QUOTA_ENFORCER_H_