Bootstrapping: Send meaningful error code/message from Slave to Master

components/pairing/fake_host_pairing_controller.cc

Index: components/pairing/fake_host_pairing_controller.cc
diff --git a/components/pairing/fake_host_pairing_controller.cc b/components/pairing/fake_host_pairing_controller.cc
index f0300f2dd5468cf47a91c98c11f1d1ddf2cd2941..b6bfc5cdfefc891d29270bcac097a9c6bf2ab27d 100644
--- a/components/pairing/fake_host_pairing_controller.cc
+++ b/components/pairing/fake_host_pairing_controller.cc
@@ -141,6 +141,10 @@ void FakeHostPairingController::SetPermanentId(
     const std::string& permanent_id) {
 }
 
+void FakeHostPairingController::SetErrorCodeAndMessage(
+    int error_code,
+    const std::string& error_message) {}
+
 void FakeHostPairingController::Reset() {
 }