Revert of chromeos: Remove some IME methods from ash::SystemTrayDelegate

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("//extensions/features/features.gni")
 import("//media/media_options.gni")
 import("//printing/features/features.gni")
 import("//third_party/protobuf/proto_library.gni")
@@ skipping 673 matching lines @@
     "input_method/input_method_configuration.cc",
     "input_method/input_method_configuration.h",
     "input_method/input_method_delegate_impl.cc",
     "input_method/input_method_delegate_impl.h",
     "input_method/input_method_engine.cc",
     "input_method/input_method_engine.h",
     "input_method/input_method_manager_impl.cc",
     "input_method/input_method_manager_impl.h",
     "input_method/input_method_persistence.cc",
     "input_method/input_method_persistence.h",
+    "input_method/input_method_switch_recorder.cc",
+    "input_method/input_method_switch_recorder.h",
     "input_method/input_method_syncer.cc",
     "input_method/input_method_syncer.h",
     "input_method/input_method_util.cc",
     "input_method/input_method_util.h",
     "input_method/mode_indicator_controller.cc",
     "input_method/mode_indicator_controller.h",
     "language_preferences.cc",
     "language_preferences.h",
     "launcher_search_provider/error_reporter.cc",
     "launcher_search_provider/error_reporter.h",
@@ skipping 1162 matching lines @@
     "policy/proto/chrome_device_policy.proto",
     "policy/proto/install_attributes.proto",
   ]
 }
 
 proto_library("attestation_proto") {
   sources = [
     "attestation/attestation_key_payload.proto",
   ]
 }