[CrOS Tether] Transform NetworkConnectionHandler to an interface.

chromeos/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//third_party/protobuf/proto_library.gni")
 
 assert(is_chromeos, "Non-ChromeOS builds must not depend on //chromeos")
 
@@ skipping 321 matching lines @@
     "network/network_change_notifier_chromeos.h",
     "network/network_change_notifier_factory_chromeos.cc",
     "network/network_change_notifier_factory_chromeos.h",
     "network/network_configuration_handler.cc",
     "network/network_configuration_handler.h",
     "network/network_configuration_observer.h",
     "network/network_connect.cc",
     "network/network_connect.h",
     "network/network_connection_handler.cc",
     "network/network_connection_handler.h",
+    "network/network_connection_handler_impl.cc",
+    "network/network_connection_handler_impl.h",
     "network/network_connection_observer.cc",
     "network/network_connection_observer.h",
     "network/network_device_handler.cc",
     "network/network_device_handler.h",
     "network/network_device_handler_impl.cc",
     "network/network_device_handler_impl.h",
     "network/network_event_log.h",
     "network/network_handler.cc",
     "network/network_handler.h",
     "network/network_handler_callbacks.cc",
@@ skipping 298 matching lines @@
     "network/auto_connect_handler_unittest.cc",
     "network/client_cert_resolver_unittest.cc",
     "network/firewall_hole_unittest.cc",
     "network/geolocation_handler_unittest.cc",
     "network/host_resolver_impl_chromeos_unittest.cc",
     "network/managed_network_configuration_handler_unittest.cc",
     "network/network_cert_migrator_unittest.cc",
     "network/network_change_notifier_chromeos_unittest.cc",
     "network/network_configuration_handler_unittest.cc",
     "network/network_connect_unittest.cc",
-    "network/network_connection_handler_unittest.cc",
+    "network/network_connection_handler_impl_unittest.cc",
     "network/network_device_handler_unittest.cc",
     "network/network_sms_handler_unittest.cc",
     "network/network_state_handler_unittest.cc",
     "network/network_state_unittest.cc",
     "network/network_type_pattern_unittest.cc",
     "network/network_ui_data_unittest.cc",
     "network/network_util_unittest.cc",
     "network/onc/onc_certificate_importer_impl_unittest.cc",
     "network/onc/onc_merger_unittest.cc",
     "network/onc/onc_normalizer_unittest.cc",
@@ skipping 74 matching lines @@
   proto_out_dir = "chromeos/cryptohome"
 }
 
 proto_library("authpolicy_proto") {
   sources = [
     "//third_party/cros_system_api/dbus/authpolicy/active_directory_info.proto",
   ]
 
   proto_out_dir = "chromeos/dbus/authpolicy"
 }