Move touchscreen device caching to DeviceDataManager

ui/display/chromeos/ozone/display_configurator_ozone.cc

Index: ui/display/chromeos/ozone/display_configurator_ozone.cc
diff --git a/ui/display/chromeos/ozone/display_configurator_ozone.cc b/ui/display/chromeos/ozone/display_configurator_ozone.cc
index 451a6a827baa3dd3daefd22fafc228b10cca6ef3..ea8f2dea9cab5e14da14e7a3ab32a280f67d5bab 100644
--- a/ui/display/chromeos/ozone/display_configurator_ozone.cc
+++ b/ui/display/chromeos/ozone/display_configurator_ozone.cc
@@ -4,9 +4,7 @@
 
 #include "ui/display/chromeos/display_configurator.h"
 
-#include "ui/display/chromeos/touchscreen_delegate_impl.h"
 #include "ui/display/types/chromeos/native_display_delegate.h"
-#include "ui/display/types/chromeos/touchscreen_device_manager.h"
 #include "ui/ozone/public/ozone_platform.h"
 
 namespace ui {
@@ -16,10 +14,4 @@ DisplayConfigurator::CreatePlatformNativeDisplayDelegate() {
   return ui::OzonePlatform::GetInstance()->CreateNativeDisplayDelegate();
 }
 
-scoped_ptr<DisplayConfigurator::TouchscreenDelegate>
-DisplayConfigurator::CreatePlatformTouchscreenDelegate() {
-  return scoped_ptr<TouchscreenDelegate>(new TouchscreenDelegateImpl(
-      ui::OzonePlatform::GetInstance()->CreateTouchscreenDeviceManager()));
-}
-
 }  // namespace ui