Add a ListModel::Move.

ui/app_list/search_result_list_view.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 "ui/app_list/search_result_list_view.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/message_loop.h"
@@ skipping 121 matching lines @@
 }
 
 void SearchResultListView::ListItemsRemoved(size_t start, size_t count) {
   size_t last = std::min(start + count, static_cast<size_t>(child_count()));
   for (size_t i = start; i < last; ++i)
     GetResultViewAt(i)->ClearResultNoRepaint();
 
   ScheduleUpdate();
 }
 
+void SearchResultListView::ListItemMoved(size_t index, size_t target_index) {
+  NOTREACHED();
+}
+
 void SearchResultListView::ListItemsChanged(size_t start, size_t count) {
   ScheduleUpdate();
 }
 
 void SearchResultListView::SearchResultActivated(SearchResultView* view,
                                                  const ui::Event& event) {
   if (delegate_ && view->result())
     delegate_->OpenResult(*(view->result()), event.flags());
 }
 
 void SearchResultListView::SearchResultActionActivated(SearchResultView* view,
                                                        int action_index,
                                                        const ui::Event& event) {
   if (delegate_ && view->result()) {
     delegate_->InvokeResultAction(
         *(view->result()), action_index, event.flags());
   }
 }
 
 }  // namespace app_list