Introduce BookmarkClient interface to abstract embedder

chrome/browser/bookmarks/chrome_bookmark_client.h

+// Copyright 2014 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_BOOKMARKS_CHROME_BOOKMARK_CLIENT_H_
+#define CHROME_BROWSER_BOOKMARKS_CHROME_BOOKMARK_CLIENT_H_
+
+#include "base/compiler_specific.h"
+#include "components/bookmarks/core/browser/bookmark_client.h"
+#include "components/keyed_service/core/keyed_service.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+
+class BookmarkModel;
+class Profile;
+
+class ChromeBookmarkClient : public BookmarkClient,
+                             public content::NotificationObserver,
+                             public KeyedService {
+ public:
+  // |index_urls| says whether URLs should be stored in the BookmarkIndex
+  // in addition to bookmark titles.
+  ChromeBookmarkClient(Profile* profile, bool index_urls);
+  virtual ~ChromeBookmarkClient();
+
+  // Returns the BookmarkModel that corresponds to this ChromeBookmarkClient.
+  BookmarkModel* model() { return model_.get(); }
+
+  // BookmarkClient:
+  virtual base::CancelableTaskTracker::TaskId GetFaviconImageForURL(
+      const GURL& page_url,
+      int icon_types,
+      int desired_size_in_dip,
+      const FaviconImageCallback& callback,
+      base::CancelableTaskTracker* tracker) OVERRIDE;
+  virtual bool SupportsTypedCountForNodes() OVERRIDE;
+  virtual void GetTypedCountForNodes(
+      const NodeSet& nodes,
+      NodeTypedCountPairs* node_typed_count_pairs) OVERRIDE;
+  virtual void RecordAction(const base::UserMetricsAction& action) OVERRIDE;
+  virtual void NotifyHistoryAboutRemovedBookmarks(
+      const std::set<GURL>& removed_bookmarks_urls) OVERRIDE;
+
+  // content::NotificationObserver:
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // KeyedService:
+  virtual void Shutdown() OVERRIDE;
+
+ private:
+  Profile* profile_;
+
+  content::NotificationRegistrar registrar_;
+
+  scoped_ptr<BookmarkModel> model_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeBookmarkClient);
+};
+
+#endif  // CHROME_BROWSER_BOOKMARKS_CHROME_BOOKMARK_CLIENT_H_