Bookmark Undo service for multiple level undo/redo of bookmarks.

chrome/browser/undo/bookmark_undo_service_factory.cc

+// Copyright 2013 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.
+
+#include "chrome/browser/undo/bookmark_undo_service_factory.h"
+
+#include "chrome/browser/bookmarks/bookmark_model_factory.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/undo/bookmark_undo_service.h"
+#include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
+
+// static
+BookmarkUndoService* BookmarkUndoServiceFactory::GetForProfile(
+    Profile* profile) {
+  return static_cast<BookmarkUndoService*>(
+      GetInstance()->GetServiceForBrowserContext(profile, true));
+}
+
+// static
+BookmarkUndoServiceFactory* BookmarkUndoServiceFactory::GetInstance() {
+  return Singleton<BookmarkUndoServiceFactory>::get();
+}
+
+BookmarkUndoServiceFactory::BookmarkUndoServiceFactory()
+    : BrowserContextKeyedServiceFactory(
+          "BookmarkUndoService",
+          BrowserContextDependencyManager::GetInstance()) {
+  DependsOn(BookmarkModelFactory::GetInstance());
+}
+
+BookmarkUndoServiceFactory::~BookmarkUndoServiceFactory() {
+}
+
+BrowserContextKeyedService* BookmarkUndoServiceFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  Profile* profile = static_cast<Profile*>(context);
+  return new BookmarkUndoService(profile);
+}