bookmarks: Move BaseBookmarkModelObserver into 'bookmarks' namespace.

chrome/browser/undo/bookmark_undo_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_UNDO_BOOKMARK_UNDO_SERVICE_H_
 #define CHROME_BROWSER_UNDO_BOOKMARK_UNDO_SERVICE_H_
 
 #include <map>
 
 #include "chrome/browser/undo/bookmark_renumber_observer.h"
 #include "chrome/browser/undo/undo_manager.h"
 #include "components/bookmarks/browser/base_bookmark_model_observer.h"
 #include "components/bookmarks/browser/bookmark_node_data.h"
 #include "components/keyed_service/core/keyed_service.h"
 
 class Profile;
 namespace {
 class BookmarkUndoOperation;
 }  // namespace
 
 // BookmarkUndoService --------------------------------------------------------
 
 // BookmarkUndoService is owned by the profile, and is responsible for observing
 // BookmarkModel changes in order to provide an undo for those changes.
-class BookmarkUndoService : public BaseBookmarkModelObserver,
+class BookmarkUndoService : public bookmarks::BaseBookmarkModelObserver,
                             public KeyedService,
                             public BookmarkRenumberObserver {
  public:
   explicit BookmarkUndoService(Profile* profile);
   ~BookmarkUndoService() override;
 
   UndoManager* undo_manager() { return &undo_manager_; }
 
  private:
-  // BaseBookmarkModelObserver:
+  // bookmarks::BaseBookmarkModelObserver:
   void BookmarkModelChanged() override {}
   void BookmarkModelLoaded(BookmarkModel* model, bool ids_reassigned) override;
   void BookmarkModelBeingDeleted(BookmarkModel* model) override;
   void BookmarkNodeMoved(BookmarkModel* model,
                          const BookmarkNode* old_parent,
                          int old_index,
                          const BookmarkNode* new_parent,
                          int new_index) override;
   void BookmarkNodeAdded(BookmarkModel* model,
                          const BookmarkNode* parent,
@@ skipping 13 matching lines @@
   // BookmarkRenumberObserver:
   void OnBookmarkRenumbered(int64 old_id, int64 new_id) override;
 
   Profile* profile_;
   UndoManager undo_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkUndoService);
 };
 
 #endif  // CHROME_BROWSER_UNDO_BOOKMARK_UNDO_SERVICE_H_