We were missing sending scaled transform to occlusion tracker
while retrieving UnoccludedContentRect in during append quad,
hence the visible_geometry_rect was going wrong.
BUG=384967
Review URL: https://codereview.chromium.org/350183005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@279794 0039d316-1c4b-4281-b951-d872f2087c98