Allow AppSearchProvider to provide recommendations.

chrome/browser/ui/app_list/app_list_view_delegate.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/app_list_view_delegate.h"
 
 #include <vector>
 
 #include "apps/custom_launcher_page_contents.h"
 #include "base/callback.h"
@@ skipping 287 matching lines @@
 
   web_app::GetShortcutInfoForApp(
       extension,
       profile_,
       base::Bind(CreateShortcutInWebAppDir, app_data_dir, callback));
 #else
   callback.Run(base::FilePath());
 #endif
 }
 
+void AppListViewDelegate::FetchRecommendations() {
+  if (search_controller_)
+    search_controller_->FetchRecommendations();
+}
+
 void AppListViewDelegate::StartSearch() {
   if (search_controller_)
     search_controller_->Start();
 }
 
 void AppListViewDelegate::StopSearch() {
   if (search_controller_)
     search_controller_->Stop();
 }
 
@@ skipping 215 matching lines @@
 
 void AppListViewDelegate::AddObserver(
     app_list::AppListViewDelegateObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void AppListViewDelegate::RemoveObserver(
     app_list::AppListViewDelegateObserver* observer) {
   observers_.RemoveObserver(observer);
 }