Report signling errors for register-support-host requests.

remoting/host/it2me/it2me_host_unittest.cc

Index: remoting/host/it2me/it2me_host_unittest.cc
diff --git a/remoting/host/it2me/it2me_host_unittest.cc b/remoting/host/it2me/it2me_host_unittest.cc
index c00accce86e721ec5b603ef3dd9dc7347ce08bc5..068af645615a04ebf595af4db9ff33728ab69fcd 100644
--- a/remoting/host/it2me/it2me_host_unittest.cc
+++ b/remoting/host/it2me/it2me_host_unittest.cc
@@ -176,6 +176,7 @@ class It2MeHostTest : public testing::Test, public It2MeHost::Observer {
 
   std::unique_ptr<base::MessageLoop> message_loop_;
   std::unique_ptr<base::RunLoop> run_loop_;
+  std::unique_ptr<FakeSignalStrategy> fake_client_signal_strategy_;
 
   scoped_refptr<AutoThreadTaskRunner> network_task_runner_;
   scoped_refptr<AutoThreadTaskRunner> ui_task_runner_;
@@ -207,12 +208,16 @@ void It2MeHostTest::SetUp() {
   std::unique_ptr<FakeIt2MeDialogFactory> dialog_factory(
       new FakeIt2MeDialogFactory());
   dialog_factory_ = dialog_factory.get();
-  it2me_host_ = new It2MeHost(
-      std::move(host_context),
-      std::move(dialog_factory), weak_factory_.GetWeakPtr(),
-      base::WrapUnique(
-          new FakeSignalStrategy(SignalingAddress("fake_local_jid"))),
-      kTestUserName, "fake_bot_jid");
+  fake_client_signal_strategy_.reset(
+      new FakeSignalStrategy(SignalingAddress("fake_client_jid")));
+  auto fake_signal_strategy =
+      base::MakeUnique<FakeSignalStrategy>(SignalingAddress("fake_local_jid"));
+  fake_client_signal_strategy_->ConnectTo(fake_signal_strategy.get());

[kelvinp, 2017/06/06 01:03:54]

Since now we report signaling errors properly, we would need to ensure the
signaling channel is connected or else StartHost() would fail with
SIGNALING_ERROR.

+
+  it2me_host_ =
+      new It2MeHost(std::move(host_context), std::move(dialog_factory),
+                    weak_factory_.GetWeakPtr(), std::move(fake_signal_strategy),
+                    kTestUserName, "fake_bot_jid");
 
   it2me_host_->OnPolicyUpdate(PolicyWatcher::GetDefaultPolicies());
 }