app_list: Show apps grid after installing from cws result.

ui/app_list/search_result.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/search_result.h"
 
 #include "ui/app_list/search_result_observer.h"
 
 namespace app_list {
 
@@ skipping 44 matching lines @@
 void SearchResult::SetPercentDownloaded(int percent_downloaded) {
   if (percent_downloaded_ == percent_downloaded)
     return;
 
   percent_downloaded_ = percent_downloaded;
   FOR_EACH_OBSERVER(SearchResultObserver,
                     observers_,
                     OnPercentDownloadedChanged());
 }
 
+void SearchResult::NotifyItemInstalled() {
+  FOR_EACH_OBSERVER(SearchResultObserver,
+                    observers_,
+                    OnItemInstalled());
+}
+
 void SearchResult::AddObserver(SearchResultObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void SearchResult::RemoveObserver(SearchResultObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
 ui::MenuModel* SearchResult::GetContextMenuModel() {
   return NULL;
 }
 
 }  // namespace app_list