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

ui/ozone/platform/dri/dri_cursor.cc

Index: ui/ozone/platform/dri/dri_cursor.cc
diff --git a/ui/ozone/platform/dri/dri_cursor.cc b/ui/ozone/platform/dri/dri_cursor.cc
index 22d21726136cf157c911b694c3904ff3dc38e195..4e2b184544761d2d1320d56d66f310b320b61b20 100644
--- a/ui/ozone/platform/dri/dri_cursor.cc
+++ b/ui/ozone/platform/dri/dri_cursor.cc
@@ -58,16 +58,20 @@ void DriCursor::MoveCursorTo(gfx::AcceleratedWidget widget,
 
   cursor_window_ = widget;
   cursor_location_ = location;
+  cursor_root_location_ = location;
 
   if (cursor_window_ == gfx::kNullAcceleratedWidget)
     return;
 
   DriWindow* window = window_manager_->GetWindow(cursor_window_);
-  const gfx::Size& size = window->GetBounds().size();
+  gfx::Rect bounds = window->GetBounds();
+  const gfx::Size& size = bounds.size();
   cursor_location_.SetToMax(gfx::PointF(0, 0));
   // Right and bottom edges are exclusive.
   cursor_location_.SetToMin(gfx::PointF(size.width() - 1, size.height() - 1));
 
+  cursor_root_location_ = cursor_location_ + bounds.OffsetFromOrigin();
+
   if (cursor_.get())
     hardware_->MoveHardwareCursor(cursor_window_, bitmap_location());
 }
@@ -88,6 +92,10 @@ gfx::PointF DriCursor::location() {
   return cursor_location_;
 }
 
+gfx::PointF DriCursor::root_location() {
+  return cursor_root_location_;
+}
+
 gfx::Point DriCursor::bitmap_location() {
   return gfx::ToFlooredPoint(cursor_location_) -
          cursor_->hotspot().OffsetFromOrigin();