Revert 127573 - DOMStorageContextImpl that's implemented in terms of the new dom_storage classes. A…

content/browser/dom_storage/dom_storage_context_impl_new.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 CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_IMPL_H_
-#define CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_IMPL_H_
-#pragma once
-
-#include "base/file_path.h"
-#include "base/memory/ref_counted.h"
-#include "base/string16.h"
-#include "base/time.h"
-#include "content/public/browser/dom_storage_context.h"
-#include "webkit/dom_storage/dom_storage_types.h"
-
-#ifdef ENABLE_NEW_DOM_STORAGE_BACKEND
-
-namespace dom_storage {
-class DomStorageContext;
-}
-
-namespace quota {
-class SpecialStoragePolicy;
-}
-
-// This is owned by BrowserContext (aka Profile) and encapsulates all
-// per-profile dom storage state.
-class CONTENT_EXPORT DOMStorageContextImpl :
-    NON_EXPORTED_BASE(public content::DOMStorageContext),
-    public base::RefCountedThreadSafe<DOMStorageContextImpl> {
- public:
-  // If |data_path| is empty, nothing will be saved to disk.
-  DOMStorageContextImpl(const FilePath& data_path,
-                        quota::SpecialStoragePolicy* special_storage_policy);
-
-  // DOMStorageContext implementation.
-  virtual void GetAllStorageFiles(
-      const GetAllStorageFilesCallback& callback) OVERRIDE;
-  virtual FilePath GetFilePath(const string16& origin_id) const OVERRIDE;
-  virtual void DeleteForOrigin(const string16& origin_id) OVERRIDE;
-  virtual void DeleteLocalStorageFile(const FilePath& file_path) OVERRIDE;
-  virtual void DeleteDataModifiedSince(const base::Time& cutoff) OVERRIDE;
-
-  // Called to free up memory that's not strictly needed.
-  void PurgeMemory();
-
-  // Used by content settings to alter the behavior around
-  // what data to keep and what data to discard at shutdown.
-  // The policy is not so straight forward to describe, see
-  // the implementation for details.
-  void SetClearLocalState(bool clear_local_state);
-  void SaveSessionState();
-
-  // Called when the BrowserContext/Profile is going away.
-  void Shutdown();
-
-  // See render_message_filter.cc for details.
-  // TODO(michaeln): Remove this method when that bug is fixed.
-  int64 LeakyCloneSessionStorage(int64 existing_namespace_id);
-
- private:
-  friend class DOMStorageMessageFilter;  // for access to context()
-  friend class SessionStorageNamespaceImpl;  // ditto
-  friend class base::RefCountedThreadSafe<DOMStorageContextImpl>;
-
-  virtual ~DOMStorageContextImpl();
-  dom_storage::DomStorageContext* context() const { return context_.get(); }
-
-  scoped_refptr<dom_storage::DomStorageContext> context_;
-
-  DISALLOW_IMPLICIT_CONSTRUCTORS(DOMStorageContextImpl);
-};
-
-#endif  // ENABLE_NEW_DOM_STORAGE_BACKEND
-#endif  // CONTENT_BROWSER_DOM_STORAGE_DOM_STORAGE_CONTEXT_IMPL_H_