arc: Notify ARC instance failures via callbacks.

components/arc/test/fake_arc_bridge_instance.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/test/fake_arc_bridge_instance.h"
 
 #include <utility>
 
 namespace arc {
 
@@ skipping 13 matching lines @@
 
 void FakeArcBridgeInstance::Bind(
     mojo::InterfaceRequest<mojom::ArcBridgeInstance> interface_request) {
   binding_.Bind(std::move(interface_request));
 }
 
 void FakeArcBridgeInstance::WaitForInitCall() {
   binding_.WaitForIncomingMethodCall();
 }
 
-void FakeArcBridgeInstance::SimulateCrash() {
+void FakeArcBridgeInstance::SimulateCrash(ArcBridgeService::StopReason reason) {
   if (!delegate_)
     return;
-  delegate_->OnCrashed();
+  delegate_->OnCrashed(reason);
 }
 
 }  // namespace arc