Release slotId of TouchEvent when USE_XI2_MT defined

Release slotId of TouchEvent when USE_XI2_MT defined

When defined USE_XI2_MT, slot id of TouchEvent is maintained
by a map of tracking id to slot id. Because tracking id will
always keep increasing. The item should be released by TouchRelease
to free the slot id for future use.

BUG=106673
TEST=Manually Tested


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=113850

[aofdwsl, 2011-12-07 07:41:09]

Please review the patch, Thanks.

[aofdwsl, 2011-12-07 09:25:24]

Please review the patch, thanks.

[sadrul, 2011-12-08 17:04:41]

A small style nit. Otherwise, LGTM. Thanks!

I notice that you are not in AUTHORS yet. Please add yourself at the end of the
file (in 'Name <email>' format). Also, I believe you need to complete the
Individual Contributor License Agreement (you can do it online here:
http://code.google.com/legal/individual-cla-v1.0.html). More details at
https://sites.google.com/a/chromium.org/dev/developers/contributing-code.

Adding sky@ for OWNERS

http://codereview.chromium.org/8839004/diff/1/ui/base/x/events_x.cc
File ui/base/x/events_x.cc (right):

http://codereview.chromium.org/8839004/diff/1/ui/base/x/events_x.cc#newcode352
ui/base/x/events_x.cc:352: else {
If you need brace in one, you should use them for all.

i.e.

if (!factory...) {
  ...
} else {
  ...
}

[aofdwsl, 2011-12-09 01:54:56]

Thanks, I've fixed the nit according to you comments.

[sky, 2011-12-09 16:27:12]

LGTM

[commit-bot: I haz the power, 2011-12-09 16:27:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/aofdwsl@gmail.com/8839004/5001

[commit-bot: I haz the power, 2011-12-09 22:10:42]

Change committed as 113850