Elim ActivateAppListItem, ChromeAppListItem

chrome/browser/ui/app_list/apps_model_builder.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/ui/app_list/apps_model_builder.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/prefs/pref_service.h"
@@ skipping 290 matching lines @@
   int index = FindApp(highlight_app_id_);
   if (index == -1)
     return;
 
   model_->GetItemAt(index)->SetHighlighted(true);
   highlighted_app_pending_ = false;
 }
 
 ExtensionAppItem* AppsModelBuilder::GetAppAt(size_t index) {
   DCHECK_LT(index, model_->item_count());
-  ChromeAppListItem* item =
-      static_cast<ChromeAppListItem*>(model_->GetItemAt(index));
-  DCHECK_EQ(item->type(), ChromeAppListItem::TYPE_APP);
-
-  return static_cast<ExtensionAppItem*>(item);
+  return static_cast<ExtensionAppItem*>(model_->GetItemAt(index));
 }
 
 void AppsModelBuilder::ListItemsAdded(size_t start, size_t count) {
 }
 
 void AppsModelBuilder::ListItemsRemoved(size_t start, size_t count) {
 }
 
 void AppsModelBuilder::ListItemMoved(size_t index, size_t target_index) {
   if (ignore_changes_)
     return;
 
   ExtensionAppItem* prev = target_index > 0 ? GetAppAt(target_index - 1) : NULL;
   ExtensionAppItem* next = target_index + 1 < model_->item_count() ?
       GetAppAt(target_index + 1) : NULL;
   GetAppAt(target_index)->Move(prev, next);
 }
 
 void AppsModelBuilder::ListItemsChanged(size_t start, size_t count) {
   NOTREACHED();
 }