Move bookmark_model_observer.h to the bookmarks component

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"
-#include "chrome/browser/bookmarks/bookmark_model_observer.h"
 #include "chrome/browser/sync/glue/bookmark_model_associator.h"
 #include "chrome/browser/sync/glue/sync_backend_host.h"
+#include "components/bookmarks/core/browser/bookmark_model_observer.h"
 #include "components/bookmarks/core/browser/bookmark_node.h"
 #include "components/sync_driver/change_processor.h"
 #include "components/sync_driver/data_type_error_handler.h"
 
 class Profile;
 
 namespace base {
 class RefCountedMemory;
 }
 
@@ skipping 177 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_