Moving input device hotplug event processing outside of ui/display

ui/display/display.gyp

Index: ui/display/display.gyp
diff --git a/ui/display/display.gyp b/ui/display/display.gyp
index 4b2ca521e6c4cdd4976e2fbc2d8b37359db8b956..a3dd3920cd8708b4d8e694a38ef02a2f4360ea76 100644
--- a/ui/display/display.gyp
+++ b/ui/display/display.gyp
@@ -24,9 +24,6 @@
         'types/chromeos/display_snapshot.h',
         'types/chromeos/native_display_delegate.h',
         'types/chromeos/native_display_observer.h',
-        'types/chromeos/touchscreen_device.cc',
-        'types/chromeos/touchscreen_device.h',
-        'types/chromeos/touchscreen_device_manager.h',
         'types/display_constants.h',
         'types/display_types_export.h',
       ],
@@ -46,8 +43,6 @@
       'sources': [
         'chromeos/display_configurator.cc',
         'chromeos/display_configurator.h',
-        'chromeos/touchscreen_delegate_impl.cc',
-        'chromeos/touchscreen_delegate_impl.h',
         'chromeos/ozone/display_configurator_ozone.cc',
         'chromeos/x11/display_configurator_x11.cc',
         'chromeos/x11/display_mode_x11.cc',
@@ -60,8 +55,6 @@
         'chromeos/x11/native_display_delegate_x11.h',
         'chromeos/x11/native_display_event_dispatcher_x11.cc',
         'chromeos/x11/native_display_event_dispatcher_x11.h',
-        'chromeos/x11/touchscreen_device_manager_x11.cc',
-        'chromeos/x11/touchscreen_device_manager_x11.h',
         'display_export.h',
         'display_switches.cc',
         'display_switches.h',