Implement onQueryEnded.

chrome/browser/chromeos/launcher_search_provider/service.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LAUNCHER_SEARCH_PROVIDER_SERVICE_H_
 #define CHROME_BROWSER_CHROMEOS_LAUNCHER_SEARCH_PROVIDER_SERVICE_H_
 
 #include "chrome/browser/profiles/profile.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 11 matching lines @@
 // TODO(yawano): Implement opt-in control (crbug.com/440649).
 class Service : public KeyedService {
  public:
   Service(Profile* profile, extensions::ExtensionRegistry* extension_registry);
   ~Service() override;
   static Service* Get(content::BrowserContext* context);
 
   // Dispatches onQueryStarted events to listener extensions.
   void OnQueryStarted(const std::string& query, const int max_result);
 
+  // Dispatches onQueryEnded events to listener extensions.
+  void OnQueryEnded();
+
+  // Returns true if there is a running query.
+  bool IsQueryRunning() const;
+
  private:
   // Returns extension ids of listener extensions.
   std::set<extensions::ExtensionId> GetListenerExtensionIds();
 
   Profile* const profile_;
   extensions::ExtensionRegistry* extension_registry_;
   uint32 query_id_;
+  bool is_query_running_;
 
   DISALLOW_COPY_AND_ASSIGN(Service);
 };
 
 }  // namespace launcher_search_provider
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LAUNCHER_SEARCH_PROVIDER_SERVICE_H_