bookmarks: Move BookmarkModelObserver into 'bookmarks' namespace.

chrome/browser/sync/glue/bookmark_change_processor.h

 // Copyright (c) 2012 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_SYNC_GLUE_BOOKMARK_CHANGE_PROCESSOR_H_
 #define CHROME_BROWSER_SYNC_GLUE_BOOKMARK_CHANGE_PROCESSOR_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 14 matching lines @@
 class WriteNode;
 class WriteTransaction;
 }  // namespace syncer
 
 namespace browser_sync {
 
 // This class is responsible for taking changes from the BookmarkModel
 // and applying them to the sync API 'syncable' model, and vice versa.
 // All operations and use of this class are from the UI thread.
 // This is currently bookmarks specific.
-class BookmarkChangeProcessor : public BookmarkModelObserver,
+class BookmarkChangeProcessor : public bookmarks::BookmarkModelObserver,
                                 public sync_driver::ChangeProcessor {
  public:
   BookmarkChangeProcessor(Profile* profile,
                           BookmarkModelAssociator* model_associator,
                           sync_driver::DataTypeErrorHandler* error_handler);
   ~BookmarkChangeProcessor() override;
 
-  // BookmarkModelObserver implementation.
+  // bookmarks::BookmarkModelObserver:
   // BookmarkModel -> sync API model change application.
   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 161 matching lines @@
 
   // The two models should be associated according to this ModelAssociator.
   BookmarkModelAssociator* model_associator_;
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkChangeProcessor);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_BOOKMARK_CHANGE_PROCESSOR_H_