arc-bridge: Restart ARC instance on crash

components/arc/test/fake_arc_bridge_instance.cc

Index: components/arc/test/fake_arc_bridge_instance.cc
diff --git a/components/arc/test/fake_arc_bridge_instance.cc b/components/arc/test/fake_arc_bridge_instance.cc
index 4ee47cfdeb08a54def2d538caeed0c326c0c8139..cfa0737b40f245c38b3358d6df63e0cd7411a914 100644
--- a/components/arc/test/fake_arc_bridge_instance.cc
+++ b/components/arc/test/fake_arc_bridge_instance.cc
@@ -13,6 +13,13 @@ FakeArcBridgeInstance::~FakeArcBridgeInstance() {}
 
 void FakeArcBridgeInstance::Init(ArcBridgeHostPtr host) {
   host_ptr_ = std::move(host);
+  init_calls_++;
+}
+
+void FakeArcBridgeInstance::Unbind() {
+  host_ptr_.reset();
+  if (binding_.is_bound())
+    binding_.Close();
 }
 
 void FakeArcBridgeInstance::Bind(
@@ -20,4 +27,8 @@ void FakeArcBridgeInstance::Bind(
   binding_.Bind(std::move(interface_request));
 }
 
+void FakeArcBridgeInstance::WaitForInitCall() {
+  binding_.WaitForIncomingMethodCall();
+}
+
 }  // namespace arc