Move webkit/{browser,common}/dom_storage into content/

webkit/browser/dom_storage/dom_storage_host.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_BROWSER_DOM_STORAGE_DOM_STORAGE_HOST_H_
-#define WEBKIT_BROWSER_DOM_STORAGE_DOM_STORAGE_HOST_H_
-
-#include <map>
-
-#include "base/memory/ref_counted.h"
-#include "base/strings/nullable_string16.h"
-#include "base/strings/string16.h"
-#include "webkit/browser/webkit_storage_browser_export.h"
-#include "webkit/common/dom_storage/dom_storage_types.h"
-
-class GURL;
-
-namespace dom_storage {
-
-class DomStorageContext;
-class DomStorageHost;
-class DomStorageNamespace;
-class DomStorageArea;
-
-// One instance is allocated in the main process for each client process.
-// Used by DomStorageMessageFilter in Chrome and by SimpleDomStorage in DRT.
-// This class is single threaded, and performs blocking file reads/writes,
-// so it shouldn't be used on chrome's IO thread.
-// See class comments for DomStorageContext for a larger overview.
-class WEBKIT_STORAGE_BROWSER_EXPORT DomStorageHost {
- public:
-  explicit DomStorageHost(DomStorageContext* context);
-  ~DomStorageHost();
-
-  bool OpenStorageArea(int connection_id, int namespace_id,
-                       const GURL& origin);
-  void CloseStorageArea(int connection_id);
-  bool ExtractAreaValues(int connection_id, ValuesMap* map);
-  unsigned GetAreaLength(int connection_id);
-  base::NullableString16 GetAreaKey(int connection_id, unsigned index);
-  base::NullableString16 GetAreaItem(int connection_id,
-                                     const base::string16& key);
-  bool SetAreaItem(int connection_id, const base::string16& key,
-                   const base::string16& value, const GURL& page_url,
-                   base::NullableString16* old_value);
-  bool RemoveAreaItem(int connection_id, const base::string16& key,
-                  const GURL& page_url,
-                  base::string16* old_value);
-  bool ClearArea(int connection_id, const GURL& page_url);
-  bool HasAreaOpen(int namespace_id, const GURL& origin) const;
-
- private:
-  // Struct to hold references needed for areas that are open
-  // within our associated client process.
-  struct NamespaceAndArea {
-    scoped_refptr<DomStorageNamespace> namespace_;
-    scoped_refptr<DomStorageArea> area_;
-    NamespaceAndArea();
-    ~NamespaceAndArea();
-  };
-  typedef std::map<int, NamespaceAndArea > AreaMap;
-
-  DomStorageArea* GetOpenArea(int connection_id);
-  DomStorageNamespace* GetNamespace(int connection_id);
-
-  scoped_refptr<DomStorageContext> context_;
-  AreaMap connections_;
-};
-
-}  // namespace dom_storage
-
-#endif  // WEBKIT_BROWSER_DOM_STORAGE_DOM_STORAGE_HOST_H_