Move app list from ash to ui.

ui/app_list/pagination_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 "ash/app_list/pagination_model.h"
+#include "ui/app_list/pagination_model.h"
 
-#include "ash/app_list/pagination_model_observer.h"
+#include "ui/app_list/pagination_model_observer.h"
 
-namespace ash {
+namespace app_list {
 
 PaginationModel::PaginationModel()
     : total_pages_(-1),
       selected_page_(-1) {
 }
 
 PaginationModel::~PaginationModel() {
 }
 
 void PaginationModel::SetTotalPages(int total_pages) {
@@ skipping 20 matching lines @@
 }
 
 void PaginationModel::AddObserver(PaginationModelObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void PaginationModel::RemoveObserver(PaginationModelObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
-}  // namespace ash
+}  // namespace app_list