mash: remove the LockStateControllerDelegate.

chrome/browser/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/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//third_party/protobuf/proto_library.gni")
 
 assert(is_chromeos)
@@ skipping 1080 matching lines @@
     "power/login_lock_state_notifier.cc",
     "power/login_lock_state_notifier.h",
     "power/peripheral_battery_observer.cc",
     "power/peripheral_battery_observer.h",
     "power/power_data_collector.cc",
     "power/power_data_collector.h",
     "power/power_prefs.cc",
     "power/power_prefs.h",
     "power/renderer_freezer.cc",
     "power/renderer_freezer.h",
-    "power/session_state_controller_delegate_chromeos.cc",
-    "power/session_state_controller_delegate_chromeos.h",
+    "power/shutdown_client_impl.cc",
+    "power/shutdown_client_impl.h",
     "preferences.cc",
     "preferences.h",
     "printer_detector/printer_detector.cc",
     "printer_detector/printer_detector.h",
     "printer_detector/printer_detector_factory.cc",
     "printer_detector/printer_detector_factory.h",
     "printing/cups_print_job.cc",
     "printing/cups_print_job.h",
     "printing/cups_print_job_manager.cc",
     "printing/cups_print_job_manager.h",
@@ skipping 512 matching lines @@
     "policy/proto/chrome_device_policy.proto",
     "policy/proto/install_attributes.proto",
   ]
 }
 
 proto_library("attestation_proto") {
   sources = [
     "attestation/attestation_key_payload.proto",
   ]
 }