x11: Listen for and process XInput2 events.

mojo/services/public/cpp/input_events/lib/input_events_type_converters.cc

Index: mojo/services/public/cpp/input_events/lib/input_events_type_converters.cc
diff --git a/mojo/services/public/cpp/input_events/lib/input_events_type_converters.cc b/mojo/services/public/cpp/input_events/lib/input_events_type_converters.cc
index aa07305f4405a8d0dd16e63ceedfefc72eb6c364..dbd8f70848ffc28ea54efbcbafbf87b4039f1339 100644
--- a/mojo/services/public/cpp/input_events/lib/input_events_type_converters.cc
+++ b/mojo/services/public/cpp/input_events/lib/input_events_type_converters.cc
@@ -98,6 +98,20 @@ TypeConverter<EventPtr, scoped_ptr<ui::Event> >::ConvertTo(
                                              input->flags));
       break;
     }
+    case ui::ET_TOUCH_MOVED:
+    case ui::ET_TOUCH_PRESSED:
+    case ui::ET_TOUCH_CANCELLED:
+    case ui::ET_TOUCH_RELEASED: {
+      gfx::Point location(input->location->x, input->location->y);
+      ui_event.reset(new ui::TouchEvent(
+                         static_cast<ui::EventType>(input->action),
+                         location,
+                         input->flags,
+                         input->touch_data->pointer_id,
+                         base::TimeDelta::FromInternalValue(input->time_stamp),
+                         0.f, 0.f, 0.f, 0.f));
+      break;
+    }
     default:
       // TODO: support other types.
       // NOTIMPLEMENTED();