Propagates the search result of start page to the app-list search box.

chrome/browser/ui/app_list/start_page_service.cc

 // Copyright 2013 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/start_page_service.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/memory/singleton.h"
@@ skipping 120 matching lines @@
 
   contents_->GetController().LoadURL(
       url,
       content::Referrer(),
       content::PAGE_TRANSITION_AUTO_TOPLEVEL,
       std::string());
 }
 
 StartPageService::~StartPageService() {}
 
+void StartPageService::AddObserver(StartPageObserver* observer) {
+  observers_.AddObserver(observer);
+}
+
+void StartPageService::RemoveObserver(StartPageObserver* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+void StartPageService::OnSearch(const base::string16& query) {
+  FOR_EACH_OBSERVER(StartPageObserver, observers_, OnSearch(query));
+}
+
 void StartPageService::Shutdown() {
   contents_.reset();
 }
 
 }  // namespace app_list