arc-bridge: Implement IPC message for app launcher

components/arc/arc_bridge_service.cc

 // 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.
 
 #include "components/arc/arc_bridge_service.h"
 
 #include "base/command_line.h"
 #include "base/sequenced_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "chromeos/chromeos_switches.h"
@@ skipping 39 matching lines @@
 void ArcBridgeService::AddObserver(Observer* observer) {
   DCHECK(origin_task_runner()->RunsTasksOnCurrentThread());
   observer_list_.AddObserver(observer);
 }
 
 void ArcBridgeService::RemoveObserver(Observer* observer) {
   DCHECK(origin_task_runner()->RunsTasksOnCurrentThread());
   observer_list_.RemoveObserver(observer);
 }
 
+void ArcBridgeService::AddAppsObserver(AppsObserver* observer) {
+  DCHECK(origin_task_runner()->RunsTasksOnCurrentThread());
+  apps_observer_list_.AddObserver(observer);
+}
+
+void ArcBridgeService::RemoveAppsObserver(AppsObserver* observer) {
+  DCHECK(origin_task_runner()->RunsTasksOnCurrentThread());
+  apps_observer_list_.RemoveObserver(observer);
+}
+
 void ArcBridgeService::SetState(State state) {
   DCHECK(origin_task_runner()->RunsTasksOnCurrentThread());
   // DCHECK on enum classes not supported.
   DCHECK(state_ != state);
   state_ = state;
   FOR_EACH_OBSERVER(Observer, observer_list(), OnStateChanged(state_));
 }
 
 void ArcBridgeService::SetAvailable(bool available) {
   DCHECK(origin_task_runner()->RunsTasksOnCurrentThread());
   DCHECK(available_ != available);
   available_ = available;
   FOR_EACH_OBSERVER(Observer, observer_list(), OnAvailableChanged(available_));
 }
 
 // static
 scoped_ptr<ArcBridgeService> ArcBridgeService::Create(
     const scoped_refptr<base::SingleThreadTaskRunner>& ipc_task_runner,
     const scoped_refptr<base::SequencedTaskRunner>& file_task_runner) {
   return make_scoped_ptr(new ArcBridgeServiceImpl(ipc_task_runner,
                                                   file_task_runner));
 }
 
 }  // namespace arc