Purge the App Launcher code from Windows.

ui/app_list/views/contents_view.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 UI_APP_LIST_VIEWS_CONTENTS_VIEW_H_
 #define UI_APP_LIST_VIEWS_CONTENTS_VIEW_H_
 
 #include <map>
 #include <memory>
 #include <utility>
@@ skipping 76 matching lines @@
   // Gets the index of a launcher page in |view_model_|, by State. Returns
   // -1 if there is no view for |state|.
   int GetPageIndexForState(AppListModel::State state) const;
 
   // Gets the state of a launcher page in |view_model_|, by index. Returns
   // INVALID_STATE if there is no state for |index|.
   AppListModel::State GetStateForPageIndex(int index) const;
 
   int NumLauncherPages() const;
 
-  void Prerender();
-
   AppsContainerView* apps_container_view() const {
     return apps_container_view_;
   }
   StartPageView* start_page_view() const { return start_page_view_; }
   CustomLauncherPageView* custom_page_view() const { return custom_page_view_; }
   SearchResultPageView* search_results_page_view() {
     return search_results_page_view_;
   }
   AppListPage* GetPageView(int index) const;
 
@@ skipping 97 matching lines @@
 
   // Manages the pagination for the launcher pages.
   PaginationModel pagination_model_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentsView);
 };
 
 }  // namespace app_list
 
 #endif  // UI_APP_LIST_VIEWS_CONTENTS_VIEW_H_