Revert StatsTableTest.MultipleThreads change which is failing tsan.
Revert StatsTableTest.MultipleThreads change which is failing tsan.

Revert r46707:

Mark StatsTableTest.MultipleThreads as flaky
instead of using #if 0.

TBR=maruel,phajdan.jr

TEST=none
BUG=10611

Review URL: http://codereview.chromium.org/2054003

git-svn-id: http://src.chromium.org/svn/trunk/src@46743 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 5b77ad82605f8d2202920635c62df04c044b2eb5
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser