Merge "Change the type of displayId to int32_t" into main

            const bool isPointerEvent =

                    isFromSource(event->getSource(), AINPUT_SOURCE_CLASS_POINTER);

            // If a pointer event has no displayId specified, inject it to the default display.

            const uint32_t displayId = isPointerEvent && (event->getDisplayId() == ADISPLAY_ID_NONE)

            const int32_t displayId = isPointerEvent && (event->getDisplayId() == ADISPLAY_ID_NONE)

                    ? ADISPLAY_ID_DEFAULT

                    : event->getDisplayId();

            int32_t flags = motionEvent.getFlags();