Hide experimental app list Google logo and custom launcher page when search engine is not Google.

ui/app_list/app_list_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_model.h"
 
 #include <string>
 
 #include "ui/app_list/app_list_folder_item.h"
 #include "ui/app_list/app_list_item.h"
 #include "ui/app_list/app_list_model_observer.h"
 #include "ui/app_list/search_box_model.h"
 
 namespace app_list {
 
 AppListModel::AppListModel()
     : top_level_item_list_(new AppListItemList),
       search_box_(new SearchBoxModel),
       results_(new SearchResults),
       status_(STATUS_NORMAL),
       state_(INVALID_STATE),
       folders_enabled_(false),
-      custom_launcher_page_enabled_(true) {
+      custom_launcher_page_enabled_(true),
+      search_engine_is_google_(false) {
   top_level_item_list_->AddObserver(this);
 }
 
 AppListModel::~AppListModel() { top_level_item_list_->RemoveObserver(this); }
 
 void AppListModel::AddObserver(AppListModelObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void AppListModel::RemoveObserver(AppListModelObserver* observer) {
@@ skipping 306 matching lines @@
     return false;
 
   --custom_launcher_page_subpage_depth_;
   return true;
 }
 
 void AppListModel::ClearCustomLauncherPageSubpages() {
   custom_launcher_page_subpage_depth_ = 0;
 }
 
+void AppListModel::SetSearchEngineIsGoogle(bool is_google) {
+  search_engine_is_google_ = is_google;
+  FOR_EACH_OBSERVER(AppListModelObserver, observers_,
+                    OnSearchEngineIsGoogleChanged(is_google));
+}
+
 // Private methods
 
 void AppListModel::OnListItemMoved(size_t from_index,
                                    size_t to_index,
                                    AppListItem* item) {
   FOR_EACH_OBSERVER(AppListModelObserver,
                     observers_,
                     OnAppListItemUpdated(item));
 }
 
@@ skipping 68 matching lines @@
   scoped_ptr<AppListItem> result = folder->item_list()->RemoveItem(item->id());
   result->set_folder_id("");
   if (folder->item_list()->item_count() == 0) {
     DVLOG(2) << "Deleting empty folder: " << folder->ToDebugString();
     DeleteItem(folder_id);
   }
   return result.Pass();
 }
 
 }  // namespace app_list