Revert of ozone: Disable broken test suites (patchset #1 of https://codereview.chromium.org/383473002/)

Reason for revert:
the tests now work

Original issue's description:
> ozone: Disable broken test suites
> 
> We're working on fixing these, but disable them to make the waterfall
> green until they are working.
> 
> BUG=382573
> TEST=none
> NOTRY=true
> NOTREECHECKS=true
> 
> depends on https://codereview.chromium.org/379933002/
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=282297

TBR=sky

Review URL: https://codereview.chromium.org/478483004

git-svn-id: http://src.chromium.org/chrome/trunk/src/testing@289857 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
Collect UMA statistics on which chrome://flags lead to chrome restart on ChromeOS.

On ChromeOS browser is restarted to apply user flags.
We need to calculate statistics on which flags mostly affect users.

BUG=386313
TEST=unittest

Review URL: https://codereview.chromium.org/344883002

git-svn-id: http://src.chromium.org/chrome/trunk/src/testing@289919 4ff67af0-8c30-449e-8e8b-ad334ec8d88c