ash: ozone: apply transformation to events outside the root window

ui/ozone/platform/dri/dri_cursor.h

Index: ui/ozone/platform/dri/dri_cursor.h
diff --git a/ui/ozone/platform/dri/dri_cursor.h b/ui/ozone/platform/dri/dri_cursor.h
index 4cea2d8822a23b70c74055ade662737d2a49a6d7..95b767023ce0fb92542b40063814d3d5ff06f69e 100644
--- a/ui/ozone/platform/dri/dri_cursor.h
+++ b/ui/ozone/platform/dri/dri_cursor.h
@@ -42,6 +42,7 @@ class DriCursor : public CursorDelegateEvdev {
   void MoveCursor(const gfx::Vector2dF& delta) override;
   bool IsCursorVisible() override;
   gfx::PointF location() override;
+  gfx::PointF root_location() override;
 
  private:
   // The location of the bitmap (the cursor location is the hotspot location).
@@ -60,6 +61,9 @@ class DriCursor : public CursorDelegateEvdev {
 
   // The location of the cursor within the window.
   gfx::PointF cursor_location_;
+
+  // The location of the cursor within the screen.
+  gfx::PointF cursor_root_location_;
 };
 
 }  // namespace ui