[CrOS Tether] Create TetherHostResponseRecorder, which records ConnectTetheringResponses and Tether…

chromeos/components/tether/BUILD.gn

Index: chromeos/components/tether/BUILD.gn
diff --git a/chromeos/components/tether/BUILD.gn b/chromeos/components/tether/BUILD.gn
index 61c3dccbd9d3d5a6cc9ece96aa7d198ecf261304..85dc49d02f0273374185f6ff9c3f5497562de553 100644
--- a/chromeos/components/tether/BUILD.gn
+++ b/chromeos/components/tether/BUILD.gn
@@ -55,6 +55,8 @@ static_library("tether") {
     "tether_device_state_manager.h",
     "tether_host_fetcher.cc",
     "tether_host_fetcher.h",
+    "tether_host_response_recorder.cc",
+    "tether_host_response_recorder.h",
     "tether_network_disconnection_handler.cc",
     "tether_network_disconnection_handler.h",
     "wifi_hotspot_connector.cc",
@@ -98,6 +100,8 @@ static_library("test_support") {
     "mock_host_scan_device_prioritizer.h",
     "mock_local_device_data_provider.cc",
     "mock_local_device_data_provider.h",
+    "mock_tether_host_response_recorder.cc",
+    "mock_tether_host_response_recorder.h",
   ]
 
   public_deps = [
@@ -138,6 +142,7 @@ source_set("unit_tests") {
     "network_configuration_remover_unittest.cc",
     "tether_connector_unittest.cc",
     "tether_host_fetcher_unittest.cc",
+    "tether_host_response_recorder_unittest.cc",
     "tether_network_disconnection_handler_unittest.cc",
     "wifi_hotspot_connector_unittest.cc",
   ]