GitLab

BUG=89931
TEST=Run the test on a loaded single-CPU system before and after the change.
Before, notice the dialog staying up past when the main windows goes away,
won't get through more than 1 or 2 repeats before breaking.
After, dialog goes away first, no more flakey.


Review URL: http://codereview.chromium.org/7747036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@98576 0039d316-1c4b-4281-b951-d872f2087c98