1 files changed, 57 insertions, 0 deletions
diff --git a/chrome/browser/dom_ui/shown_sections_handler.h b/chrome/browser/dom_ui/shown_sections_handler.h
new file mode 100644
index 0000000..8bdbd52
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+++ b/chrome/browser/dom_ui/shown_sections_handler.h
@@ -0,0 +1,57 @@
+// Copyright (c) 2006-2009 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_DOM_UI_SHOWN_SECTIONS_HANDLER_H_
+#define CHROME_BROWSER_DOM_UI_SHOWN_SECTIONS_HANDLER_H_
+
+#include "chrome/browser/dom_ui/dom_ui.h"
+#include "chrome/common/notification_observer.h"
+
+class DOMUI;
+class Value;
+class PrefService;
+
+// Use for the shown sections bitmask.
+enum Section {
+  THUMB = 1,
+  LIST = 2,
+  RECENT = 4,
+  TIPS = 8,
+  SYNC = 16,
+  DEBUG = 32
+};
+
+class ShownSectionsHandler : public DOMMessageHandler,
+                             public NotificationObserver {
+ public:
+  explicit ShownSectionsHandler(PrefService* pref_service);
+  virtual ~ShownSectionsHandler();
+
+  // DOMMessageHandler implementation.
+  virtual void RegisterMessages();
+
+  // NotificationObserver implementation.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+  // Callback for "getShownSections" message.
+  void HandleGetShownSections(const Value* value);
+
+  // Callback for "setShownSections" message.
+  void HandleSetShownSections(const Value* value);
+
+  static void RegisterUserPrefs(PrefService* pref_service);
+
+  static void MigrateUserPrefs(PrefService* pref_service,
+                               int old_pref_version,
+                               int new_pref_version);
+
+ private:
+  PrefService* pref_service_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShownSectionsHandler);
+};
+
+#endif  // CHROME_BROWSER_DOM_UI_SHOWN_SECTIONS_HANDLER_H_