Implement a MoveCursorToScreenLocation for just the window manager.

services/ui/ws/window_manager_state.cc

Index: services/ui/ws/window_manager_state.cc
diff --git a/services/ui/ws/window_manager_state.cc b/services/ui/ws/window_manager_state.cc
index a36a9b1f252662b0457bd0507bbff40b44787f85..ef349b28dd7267b8c93db37f8fa07c07a8fe0763 100644
--- a/services/ui/ws/window_manager_state.cc
+++ b/services/ui/ws/window_manager_state.cc
@@ -192,6 +192,12 @@ void WindowManagerState::ReleaseCaptureBlockedByAnyModalWindow() {
   event_dispatcher_.ReleaseCaptureBlockedByAnyModalWindow();
 }
 
+void WindowManagerState::SetCursorLocation(const gfx::Point& display_dips,
+                                           int64_t display_id) {
+  event_dispatcher()->SetMousePointerDisplayLocation(display_dips, display_id);
+  UpdateNativeCursorFromDispatcher();

[sky, 2017/06/01 22:13:20]

Don't you also need to call through to the platform_window_?
PlatformDisplayDefault has a PlatformWindow which has the function
MoveCursorTo().

[Elliot Glaysher, 2017/06/01 23:05:42]

Done.

+}
+
 void WindowManagerState::SetDragDropSourceWindow(
     DragSource* drag_source,
     ServerWindow* window,