Separates out accelerator handling in windowmanager

ash/mus/BUILD.gn

 # Copyright 2015 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("//mojo/public/tools/bindings/mojom.gni")
 import("//services/shell/public/cpp/service.gni")
 import("//services/shell/public/service_manifest.gni")
 import("//tools/grit/repack.gni")
 
 source_set("lib") {
   sources = [
-    "accelerator_registrar_impl.cc",
-    "accelerator_registrar_impl.h",
     "accelerators/accelerator_controller_delegate_mus.cc",
     "accelerators/accelerator_controller_delegate_mus.h",
+    "accelerators/accelerator_handler.h",
+    "accelerators/accelerator_ids.h",
+    "accelerators/accelerator_registrar_impl.cc",
+    "accelerators/accelerator_registrar_impl.h",
     "accessibility_delegate_mus.cc",
     "accessibility_delegate_mus.h",
     "bridge/mus_layout_manager_adapter.cc",
     "bridge/mus_layout_manager_adapter.h",
     "bridge/wm_lookup_mus.cc",
     "bridge/wm_lookup_mus.h",
     "bridge/wm_root_window_controller_mus.cc",
     "bridge/wm_root_window_controller_mus.h",
     "bridge/wm_shelf_mus.cc",
     "bridge/wm_shelf_mus.h",
@@ skipping 143 matching lines @@
     "//ui/strings",
     "//ui/views/mus:resources",
     "//ui/views/resources",
   ]
 }
 
 source_set("unittests") {
   testonly = true
 
   sources = [
-    "accelerator_registrar_unittest.cc",
+    "accelerators/accelerator_registrar_unittest.cc",
     "app_launch_unittest.cc",
     "layout_manager_unittest.cc",
     "root_window_controller_unittest.cc",
     "test/wm_test_base.cc",
     "test/wm_test_base.h",
     "test/wm_test_helper.cc",
     "test/wm_test_helper.h",
     "test/wm_test_screen.cc",
     "test/wm_test_screen.h",
     "window_manager_unittest.cc",
@@ skipping 25 matching lines @@
     "//ui/gfx/geometry",
     "//ui/gfx/geometry/mojo",
     "//ui/views/mus",
   ]
 
   data_deps = [
     ":mus",
     "//mash/quick_launch",
   ]
 }