Migrate ArcBridgeService::Observer and ArcSession::Observer.

chrome/browser/chromeos/arc/arc_session_manager.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 "chrome/browser/chromeos/arc/arc_session_manager.h"
 
 #include <utility>
 
 #include "ash/common/shelf/shelf_delegate.h"
 #include "ash/common/wm_shell.h"
@@ skipping 174 matching lines @@
   }
 
   return true;
 }
 
 // static
 bool ArcSessionManager::IsArcKioskMode() {
   return user_manager::UserManager::Get()->IsLoggedInAsArcKioskApp();
 }
 
-void ArcSessionManager::OnBridgeStopped(ArcBridgeService::StopReason reason) {
+void ArcSessionManager::OnSessionStopped(StopReason reason) {
   // TODO(crbug.com/625923): Use |reason| to report more detailed errors.
-  if (arc_sign_in_timer_.IsRunning()) {
+  if (arc_sign_in_timer_.IsRunning())
     OnProvisioningFinished(ProvisioningResult::ARC_STOPPED);
-  }
 
   if (profile_->GetPrefs()->GetBoolean(prefs::kArcDataRemoveRequested)) {
     // This should be always true, but just in case as this is looked at
     // inside RemoveArcData() at first.
     DCHECK(arc_bridge_service()->stopped());
     RemoveArcData();
   } else {
     // To support special "Stop and enable ARC" procedure for enterprise,
     // here call MaybeReenableArc() asyncronously.
     // TODO(hidehiko): Restructure the code. crbug.com/665316
@@ skipping 713 matching lines @@
       return os << "ACTIVE";
   }
 
   // Some compiler reports an error even if all values of an enum-class are
   // covered indivisually in a switch statement.
   NOTREACHED();
   return os;
 }
 
 }  // namespace arc