Make device provisioning check SDK version instead of build string.

BUG=

Review URL: https://codereview.chromium.org/183723002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254624 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254624
Don't do window shadow hacking when CoreAnimation is enabled.

BUG=245900
TEST=no visible change

Review URL: https://codereview.chromium.org/185883003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254625 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254625