Aura: fix the touch event doesn't work on Tizen 3.0 issue.
Aura: fix the touch event doesn't work on Tizen 3.0 issue.

Chromium uses the sourceid of a XIDeviceEvent to decide if it is orignated
from a touch device. See events_x.cc:717. However, Chromium uses deviceid to
check touch device. See touch_factory_x11.cc:158.

As X11 spec, only slave device has same sourceid and device id. So Chromium
should setup touch device list with XISlavePointer other than XIMasterPointer
device.

TESTS=https://github.com/borismus/MagicTouch/blob/master/samples/tracker.html

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