Fix build break when WebRTC is disabled.

TBR=finnur@chromium.org
BUG=303968

Review URL: https://codereview.chromium.org/25980002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226968 0039d316-1c4b-4281-b951-d872f2087c98
Upstreaming isAutofilEnabled and isAutofillManaged calls.

BUG=303312
NOTRY=true

Review URL: https://codereview.chromium.org/25753004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226969 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226969