Introduce ash mojo interface for lock screen action handlers

ash/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("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 
 # Historical note: Ash shipped on Windows for a couple years to support
@@ skipping 26 matching lines @@
     "accelerators/exit_warning_handler.cc",
     "accelerators/exit_warning_handler.h",
     "accelerators/key_hold_detector.cc",
     "accelerators/key_hold_detector.h",
     "accelerators/magnifier_key_scroller.cc",
     "accelerators/magnifier_key_scroller.h",
     "accelerators/spoken_feedback_toggler.cc",
     "accelerators/spoken_feedback_toggler.h",
     "accessibility_delegate.h",
     "accessibility_types.h",
+    "action_handler/action_handler_state_controller.cc",
+    "action_handler/action_handler_state_controller.h",
+    "action_handler/action_handler_state_observer.h",
     "animation/animation_change_type.h",
     "app_list/app_list_delegate_impl.cc",
     "app_list/app_list_delegate_impl.h",
     "app_list/app_list_presenter_delegate.cc",
     "app_list/app_list_presenter_delegate.h",
     "app_list/app_list_presenter_delegate_factory.cc",
     "app_list/app_list_presenter_delegate_factory.h",
     "ash_constants.cc",
     "ash_constants.h",
     "ash_export.h",
@@ skipping 1073 matching lines @@
 # This target includes the tests that are run by both ash and mash. Eventually
 # the majority of tests in |ash_unittests| should move here.
 source_set("common_unittests") {
   testonly = true
   sources = [
     "accelerators/accelerator_commands_unittest.cc",
     "accelerators/accelerator_controller_unittest.cc",
     "accelerators/accelerator_filter_unittest.cc",
     "accelerators/accelerator_table_unittest.cc",
     "accelerators/spoken_feedback_toggler_unittest.cc",
+    "action_handler/action_handler_state_controller_unittest.cc",
     "ash_touch_exploration_manager_chromeos_unittest.cc",
     "autoclick/autoclick_unittest.cc",
     "devtools/ash_devtools_unittest.cc",
     "display/display_configuration_controller_unittest.cc",
     "drag_drop/drag_image_view_unittest.cc",
     "first_run/first_run_helper_unittest.cc",
     "focus_cycler_unittest.cc",
     "frame/caption_buttons/frame_caption_button_container_view_unittest.cc",
     "frame/caption_buttons/frame_size_button_unittest.cc",
     "frame/custom_frame_view_ash_unittest.cc",
@@ skipping 342 matching lines @@
     "//content/public/app:both",
     "//device/bluetooth",
   ]
 
   data_deps = [
     "//ash/strings:ash_test_strings",
     "//ash/resources:ash_test_resources_with_content_100_percent",
     "//ash/resources:ash_test_resources_200_percent",
   ]
 }