Eliminate Bookmarks dependence to bookmark_undo_utils.h.

chrome/browser/bookmarks/bookmark_utils.h

Index: chrome/browser/bookmarks/bookmark_utils.h
diff --git a/chrome/browser/bookmarks/bookmark_utils.h b/chrome/browser/bookmarks/bookmark_utils.h
index fa5086dc8d36df2c5fba606fbbe4a392f39b9574..35660c854ae573ef0705b07f25179ffa52976ca8 100644
--- a/chrome/browser/bookmarks/bookmark_utils.h
+++ b/chrome/browser/bookmarks/bookmark_utils.h
@@ -13,6 +13,7 @@
 
 class BookmarkModel;
 class BookmarkNode;
+class Profile;
 
 namespace user_prefs {
 class PrefRegistrySyncable;
@@ -106,6 +107,21 @@ void AddIfNotBookmarked(BookmarkModel* model,
 // Removes all bookmarks for the given |url|.
 void RemoveAllBookmarks(BookmarkModel* model, const GURL& url);
 
+// ScopedGroupBookmarkActions -------------------------------------------------
+
+// Scopes the grouping of a set of changes into one undoable action.
+class ScopedGroupBookmarkActions {
+ public:
+  explicit ScopedGroupBookmarkActions(Profile* profile);
+  explicit ScopedGroupBookmarkActions(BookmarkModel* model);
+  ~ScopedGroupBookmarkActions();
+
+ private:
+  BookmarkModel* model_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedGroupBookmarkActions);
+};
+
 }  // namespace bookmark_utils
 
 #endif  // CHROME_BROWSER_BOOKMARKS_BOOKMARK_UTILS_H_