Center and change the aspect ratio for the experimental app list. [Win]

ui/app_list/views/apps_container_view.cc

 // Copyright 2013 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/views/apps_container_view.h"
 
 #include <algorithm>
 
+#include "base/command_line.h"
 #include "ui/app_list/app_list_constants.h"
 #include "ui/app_list/app_list_folder_item.h"
+#include "ui/app_list/app_list_switches.h"
 #include "ui/app_list/pagination_model.h"
 #include "ui/app_list/views/app_list_folder_view.h"
 #include "ui/app_list/views/app_list_item_view.h"
 #include "ui/app_list/views/app_list_main_view.h"
 #include "ui/app_list/views/apps_grid_view.h"
 #include "ui/app_list/views/folder_background_view.h"
 #include "ui/events/event.h"
 
 namespace app_list {
 
 AppsContainerView::AppsContainerView(AppListMainView* app_list_main_view,
                                      PaginationModel* pagination_model,
                                      AppListModel* model,
                                      content::WebContents* start_page_contents)
     : model_(model),
       show_state_(SHOW_APPS),
       top_icon_animation_pending_count_(0) {
   apps_grid_view_ = new AppsGridView(
       app_list_main_view, pagination_model, start_page_contents);
-  apps_grid_view_->SetLayout(kPreferredIconDimension,
-                             kPreferredCols,
-                             kPreferredRows);
+  int cols = kPreferredCols;
+  int rows = kPreferredRows;
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+      app_list::switches::kEnableExperimentalAppList)) {
+    cols = kExperimentalPreferredCols;
+    rows = kExperimentalPreferredRows;
+  }
+  apps_grid_view_->SetLayout(kPreferredIconDimension, cols, rows);
   AddChildView(apps_grid_view_);
 
   folder_background_view_ = new FolderBackgroundView();
   AddChildView(folder_background_view_);
 
   app_list_folder_view_ = new AppListFolderView(
       this,
       model,
       app_list_main_view,
       start_page_contents);
@@ skipping 159 matching lines @@
 void AppsContainerView::PrepareToShowApps(AppListFolderItem* folder_item) {
   if (folder_item)
     CreateViewsForFolderTopItemsAnimation(folder_item, false);
 
   // Hide the active folder item until the animation completes.
   if (apps_grid_view_->activated_item_view())
     apps_grid_view_->activated_item_view()->SetVisible(false);
 }
 
 }  // namespace app_list