Rolled ANGLE to r531.
Rolled ANGLE to r531.

This will pull in a fix for the bugs below.

TEST=try
BUG=69470,69573

Review URL: http://codereview.chromium.org/6248005

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@71389 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser