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

ui/events/event.cc

Index: ui/events/event.cc
diff --git a/ui/events/event.cc b/ui/events/event.cc
index 894d5b0f2aded44d4880e4ce2d25b043c4d4477e..ae7412cb0e5f52bb140dbf891bcd6c421a8234b3 100644
--- a/ui/events/event.cc
+++ b/ui/events/event.cc
@@ -950,6 +950,26 @@ ScrollEvent::ScrollEvent(EventType type,
   CHECK(IsScrollEvent());
 }
 
+ScrollEvent::ScrollEvent(EventType type,
+                         const gfx::PointF& location,
+                         const gfx::PointF& root_location,
+                         base::TimeDelta time_stamp,
+                         int flags,
+                         float x_offset,
+                         float y_offset,
+                         float x_offset_ordinal,
+                         float y_offset_ordinal,
+                         int finger_count)
+    : MouseEvent(type, location, root_location, flags, 0),
+      x_offset_(x_offset),
+      y_offset_(y_offset),
+      x_offset_ordinal_(x_offset_ordinal),
+      y_offset_ordinal_(y_offset_ordinal),
+      finger_count_(finger_count) {
+  set_time_stamp(time_stamp);
+  CHECK(IsScrollEvent());
+}
+
 void ScrollEvent::Scale(const float factor) {
   x_offset_ *= factor;
   y_offset_ *= factor;