Don't drop the floating point part of events when converting types.

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc

Index: ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc
diff --git a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc
index ed0cb1d6f9890f9ba21cd1ff87f3c748b7e5c8b0..a184fe910214b6807090173276f27a47eabc219e 100644
--- a/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc
+++ b/ui/views/widget/desktop_aura/desktop_window_tree_host_x11.cc
@@ -1536,7 +1536,8 @@ void DesktopWindowTreeHostX11::ConvertEventToDifferentHost(
             display_dest.device_scale_factor());
   gfx::Vector2d offset = GetLocationOnNativeScreen() -
                          host->GetLocationOnNativeScreen();
-  gfx::Point location_in_pixel_in_host = located_event->location() + offset;
+  gfx::PointF location_in_pixel_in_host =
+      located_event->location_f() + gfx::Vector2dF(offset);
   located_event->set_location(location_in_pixel_in_host);
 }