Mac: Align tabpose titles on pixel boundaries, making them less blurry.
Mac: Align tabpose titles on pixel boundaries, making them less blurry.

Also align favicon and title at their vertical center instead of at the baseline to match the tab look.

BUG=50307
TEST=Open tabpose. Titles shouldn't be blurry.

Review URL: http://codereview.chromium.org/5729001

git-svn-id: http://src.chromium.org/svn/trunk/src@68753 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 7cc89b5856bd9cef9324be4141cdb895f44b85e0
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