delete webkit/support/simple_xxx's

webkit/support/simple_dom_storage_system.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 WEBKIT_SUPPORT_SIMPLE_DOM_STORAGE_SYSTEM_H_
-#define WEBKIT_SUPPORT_SIMPLE_DOM_STORAGE_SYSTEM_H_
-
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "webkit/browser/dom_storage/dom_storage_context.h"
-
-namespace dom_storage {
-class DomStorageHost;
-}
-namespace WebKit {
-class WebStorageNamespace;
-}
-
-// Class that composes dom_storage classes together for use
-// in simple single process environments like test_shell and DRT.
-class SimpleDomStorageSystem
-    : public dom_storage::DomStorageContext::EventObserver {
- public:
-  static SimpleDomStorageSystem& instance() { return *g_instance_; }
-
-  SimpleDomStorageSystem();
-  virtual ~SimpleDomStorageSystem();
-
-  // The Create<<>> calls are bound to WebKit api that the embedder
-  // is responsible for implementing. These factories are called strictly
-  // on the 'main' webkit thread. Ditto the methods on the returned
-  // objects. SimplDomStorageSystem manufactures implementations of the
-  // WebStorageNamespace and WebStorageArea interfaces that ultimately
-  // plumb Get, Set, Remove, and Clear javascript calls to the dom_storage
-  // classes. The caller (webkit/webcore) takes ownership of the returned
-  // instances and will delete them when done.
-  WebKit::WebStorageNamespace* CreateLocalStorageNamespace();
-  WebKit::WebStorageNamespace* CreateSessionStorageNamespace();
-
- private:
-  // Inner classes that implement the WebKit WebStorageNamespace and
-  // WebStorageArea interfaces in terms of dom_storage classes.
-  class NamespaceImpl;
-  class AreaImpl;
-
-  // DomStorageContext::EventObserver implementation which
-  // calls into webkit/webcore to dispatch events.
-  virtual void OnDomStorageItemSet(
-      const dom_storage::DomStorageArea* area,
-      const base::string16& key,
-      const base::string16& new_value,
-      const base::NullableString16& old_value,
-      const GURL& page_url) OVERRIDE;
-  virtual void OnDomStorageItemRemoved(
-      const dom_storage::DomStorageArea* area,
-      const base::string16& key,
-      const base::string16& old_value,
-      const GURL& page_url) OVERRIDE;
-  virtual void OnDomStorageAreaCleared(
-      const dom_storage::DomStorageArea* area,
-      const GURL& page_url) OVERRIDE;
-
-  void DispatchDomStorageEvent(
-      const dom_storage::DomStorageArea* area,
-      const GURL& page_url,
-      const base::NullableString16& key,
-      const base::NullableString16& new_value,
-      const base::NullableString16& old_value);
-
-  base::WeakPtrFactory<SimpleDomStorageSystem> weak_factory_;
-  scoped_refptr<dom_storage::DomStorageContext> context_;
-  scoped_ptr<dom_storage::DomStorageHost> host_;
-  AreaImpl* area_being_processed_;
-  int next_connection_id_;
-
-  static SimpleDomStorageSystem* g_instance_;
-};
-
-#endif  // WEBKIT_SUPPORT_SIMPLE_DOM_STORAGE_SYSTEM_H_