Fix broken resize from bottom with magic frame.
Fix broken resize from bottom with magic frame.

Review URL: http://codereview.chromium.org/7358

git-svn-id: http://src.chromium.org/svn/trunk/src@3443 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 1ffa4ccc8f91770e9ca99d3a05e429f34023779e
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