Click on empty space clears selection in single selection list on Mac and Chrome OS.

Click on empty space clears selection in single selection list on Mac and Chrome OS.

Also Ctrl+Up/Down don't move lead item on Chrome OS.

BUG=132881
TEST=Manual test.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=142936

[arv (Not doing code reviews), 2012-06-18 16:42:43]

LGTM

I'm a biut surprised that we are diverging from the Windows behavior here. Most
of our users come from Windows and I thought the intention was to mimic Windows?

[commit-bot: I haz the power, 2012-06-18 20:24:26]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/serya@chromium.org/10566022/1

[commit-bot: I haz the power, 2012-06-18 20:38:05]

Try job failure for 10566022-1 (retry) on android for steps "compile, build"
(clobber build).
It's a second try, previously, steps "compile, build" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=android&nu...

[commit-bot: I haz the power, 2012-06-19 04:16:33]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/serya@chromium.org/10566022/1

[commit-bot: I haz the power, 2012-06-19 07:22:12]

Try job failure for 10566022-1 (retry) on win_rel for step
"chrome_frame_net_tests".
It's a second try, previously, step "chrome_frame_net_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2012-06-19 07:57:09]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/serya@chromium.org/10566022/1

[commit-bot: I haz the power, 2012-06-19 10:30:59]

Try job failure for 10566022-1 (retry) on win_rel for step
"chrome_frame_net_tests".
It's a second try, previously, step "chrome_frame_net_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...