Drag and drop between app list and launcher - First patch

ui/app_list/app_list_item_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 "ui/app_list/app_list_item_model.h"
 
 #include "base/logging.h"
 #include "ui/app_list/app_list_item_model_observer.h"
 
 namespace app_list {
@@ skipping 44 matching lines @@
 void AppListItemModel::SetPercentDownloaded(int percent_downloaded) {
   if (percent_downloaded_ == percent_downloaded)
     return;
 
   percent_downloaded_ = percent_downloaded;
   FOR_EACH_OBSERVER(AppListItemModelObserver,
                     observers_,
                     ItemPercentDownloadedChanged());
 }
 
+void AppListItemModel::SetAppId(const std::string& app_id) {
+  app_id_ = app_id;
+}
+
 void AppListItemModel::AddObserver(AppListItemModelObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void AppListItemModel::RemoveObserver(AppListItemModelObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 ui::MenuModel* AppListItemModel::GetContextMenuModel() {
   return NULL;
 }
 
 }  // namespace app_list