Migrate ArcBridgeService::Observer and ArcSession::Observer.

components/arc/test/fake_arc_session.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/test/fake_arc_session.h"
 
 #include <memory>
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 
 namespace arc {
 
 FakeArcSession::FakeArcSession() = default;
 
 FakeArcSession::~FakeArcSession() = default;
 
 void FakeArcSession::Start() {
   if (boot_failure_emulation_enabled_) {
     for (auto& observer : observer_list_)
-      observer.OnStopped(boot_failure_reason_);
+      observer.OnSessionStopped(boot_failure_reason_);
   } else if (!boot_suspended_) {
     for (auto& observer : observer_list_)
-      observer.OnReady();
+      observer.OnSessionReady();
   }
 }
 
 void FakeArcSession::Stop() {
-  StopWithReason(ArcBridgeService::StopReason::SHUTDOWN);
+  StopWithReason(ArcSessionObserver::StopReason::SHUTDOWN);
 }
 
 void FakeArcSession::OnShutdown() {
-  StopWithReason(ArcBridgeService::StopReason::SHUTDOWN);
+  StopWithReason(ArcSessionObserver::StopReason::SHUTDOWN);
 }
 
-void FakeArcSession::StopWithReason(ArcBridgeService::StopReason reason) {
+void FakeArcSession::StopWithReason(ArcSessionObserver::StopReason reason) {
   for (auto& observer : observer_list_)
-    observer.OnStopped(reason);
+    observer.OnSessionStopped(reason);
 }
 
 void FakeArcSession::EnableBootFailureEmulation(
-    ArcBridgeService::StopReason reason) {
+    ArcSessionObserver::StopReason reason) {
   DCHECK(!boot_failure_emulation_enabled_);
   DCHECK(!boot_suspended_);
 
   boot_failure_emulation_enabled_ = true;
   boot_failure_reason_ = reason;
 }
 
 void FakeArcSession::SuspendBoot() {
   DCHECK(!boot_failure_emulation_enabled_);
   DCHECK(!boot_suspended_);
 
   boot_suspended_ = true;
 }
 
 // static
 std::unique_ptr<ArcSession> FakeArcSession::Create() {
   return base::MakeUnique<FakeArcSession>();
 }
 
 }  // namespace arc