Revert r252832: Eliminate Bookmarks dependence to bookmark_undo_utils.h.

chrome/browser/bookmarks/bookmark_model.cc

 // 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.
 
 #include "chrome/browser/bookmarks/bookmark_model.h"
 
 #include <algorithm>
 #include <functional>
 
 #include "base/bind.h"
@@ skipping 266 matching lines @@
 
 void BookmarkModel::EndExtensiveChanges() {
   --extensive_changes_;
   DCHECK_GE(extensive_changes_, 0);
   if (extensive_changes_ == 0) {
     FOR_EACH_OBSERVER(BookmarkModelObserver, observers_,
                       ExtensiveBookmarkChangesEnded(this));
   }
 }
 
-void BookmarkModel::BeginGroupedChanges() {
-  FOR_EACH_OBSERVER(BookmarkModelObserver, observers_,
-                    GroupedBookmarkChangesBeginning(this));
-}
-
-void BookmarkModel::EndGroupedChanges() {
-  FOR_EACH_OBSERVER(BookmarkModelObserver, observers_,
-                    GroupedBookmarkChangesEnded(this));
-}
-
 void BookmarkModel::Remove(const BookmarkNode* parent, int index) {
   if (!loaded_ || !IsValidIndex(parent, index, false) || is_root_node(parent)) {
     NOTREACHED();
     return;
   }
   RemoveAndDeleteNode(AsMutable(parent->GetChild(index)));
 }
 
 void BookmarkModel::RemoveAll() {
   std::set<GURL> removed_urls;
@@ skipping 776 matching lines @@
   BookmarkPermanentNode* bb_node =
       CreatePermanentNode(BookmarkNode::BOOKMARK_BAR);
   BookmarkPermanentNode* other_node =
       CreatePermanentNode(BookmarkNode::OTHER_NODE);
   BookmarkPermanentNode* mobile_node =
       CreatePermanentNode(BookmarkNode::MOBILE);
   return new BookmarkLoadDetails(bb_node, other_node, mobile_node,
                                  new BookmarkIndex(profile_),
                                  next_node_id_);
 }