Enabling 3 tests on windows as they are not failing anymore on the bot.

Enabling 3 tests on windows as they dont fail anymore on the bot.
BUG=54942, 50481
TEST=none

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=95919

[shubho, 2011-08-08 18:54:55]

Hi,

i had already received LGTM for this on a different issue:

http://codereview.chromium.org/7537028

but there were commit issues. I am trying to merge this once again post syncing
and with a new CL. please review. if approved I will delete the previous CL.

[Nirnimesh, 2011-08-08 18:59:11]

LGTM

[anantha, 2011-08-08 19:56:41]

LGTM

[commit-bot: I haz the power, 2011-08-09 00:23:45]

Change committed as 95919