arc: Stop/start ARC++ kiosk app when maintenance session started/finished.

chrome/browser/chromeos/arc/kiosk/arc_kiosk_bridge.cc

 // Copyright 2016 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/kiosk/arc_kiosk_bridge.h"
+#include "chrome/browser/chromeos/arc/kiosk/arc_kiosk_bridge.h"
 
+#include "chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h"
+#include "chrome/browser/chromeos/profiles/profile_helper.h"
+#include "chrome/browser/profiles/profile.h"
 #include "components/arc/arc_bridge_service.h"
 #include "components/arc/arc_service_manager.h"
+#include "components/user_manager/user.h"
+
+namespace {
+
+Profile* GetProfile() {
+  const user_manager::User* const primary_user =
+      user_manager::UserManager::Get()->GetPrimaryUser();
+  return chromeos::ProfileHelper::Get()->GetProfileByUser(primary_user);
+}
+
+}  // namespace
 
 namespace arc {
 
 ArcKioskBridge::ArcKioskBridge(ArcBridgeService* bridge_service)
     : ArcService(bridge_service), binding_(this) {
   arc_bridge_service()->kiosk()->AddObserver(this);
 }
 
 ArcKioskBridge::~ArcKioskBridge() {
   arc_bridge_service()->kiosk()->RemoveObserver(this);
 }
 
 void ArcKioskBridge::OnInstanceReady() {
   mojom::KioskInstance* kiosk_instance =
       arc_bridge_service()->kiosk()->GetInstanceForMethod("Init");
   DCHECK(kiosk_instance);
   kiosk_instance->Init(binding_.CreateInterfacePtrAndBind());
 }
 
 void ArcKioskBridge::OnMaintenanceSessionCreated(int32_t session_id) {
+  chromeos::ArcKioskAppService::Get(GetProfile())->MaintenanceSessionCreated();

[Luis Héctor Chávez, 2016/11/22 21:15:30]

Seems like you don't *need* the real Profile. A BrowserContext can do. You can
pass it into the KioskBridge through
https://cs.chromium.org/chromium/src/components/arc/arc_service_manager.cc?sq...
(where you should add the BrowserContext as parameter).

[Sergey Poromov, 2016/11/23 13:45:33]

There can't be any BrowserContext in components/arc/arc_service_manager due to
violating deps rules.
As well ArcKioskAppService should access to
chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h and that's why it
was moved from there to chrome/browser/chromeos/arc/...
and now it's created by ArcServiceLauncher that doesn't have any information
about Profile/BrowserContext

   // TODO(poromov@) Show appropriate splash screen.
 }
 
 void ArcKioskBridge::OnMaintenanceSessionFinished(int32_t session_id,
                                                   bool success) {
-  // TODO(poromov@) Start kiosk app.
+  chromeos::ArcKioskAppService::Get(GetProfile())->MaintenanceSessionFinished();
 }
 
 }  // namespace arc