[CrOS Tether] Create DisconnectTetheringOperation, which sends a DisconnectTetheringRequest to a re…

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 6ac6026f36901d3fc7662144442cc70d0cda5530..84677f0dcba589910f74e0085ecc319a7f1d8fbd 100644
--- a/chromeos/components/tether/BUILD.gn
+++ b/chromeos/components/tether/BUILD.gn
@@ -24,6 +24,8 @@ static_library("tether") {
     "connect_tethering_operation.h",
     "device_id_tether_network_guid_map.cc",
     "device_id_tether_network_guid_map.h",
+    "disconnect_tethering_operation.cc",
+    "disconnect_tethering_operation.h",
     "host_scan_cache.cc",
     "host_scan_cache.h",
     "host_scan_device_prioritizer.cc",
@@ -133,6 +135,7 @@ source_set("unit_tests") {
     "ble_connection_manager_unittest.cc",
     "ble_scanner_unittest.cc",
     "connect_tethering_operation_unittest.cc",
+    "disconnect_tethering_operation_unittest.cc",
     "host_scan_cache_unittest.cc",
     "host_scan_device_prioritizer_unittest.cc",
     "host_scan_scheduler_unittest.cc",