WebKit roll 55365:55373.
WebKit roll 55365:55373.

BUG=none
TEST=none
TBR=darin

Review URL: http://codereview.chromium.org/660311

git-svn-id: http://src.chromium.org/svn/trunk/src@40307 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 424b4e9d54074f699e7bad6dbba4bfe540c13e8b
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