Switch tabpose to TCW.
Switch tabpose to TCW.

BUG=71097
TEST=none; no visible change

Review URL: http://codereview.chromium.org/6706026

git-svn-id: http://src.chromium.org/svn/trunk/src@80207 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 9320b4f16c3943e540c19a54ceb90143fa76a715
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