Switching to SkDeferredCanvas factory API in preparation for constructor deprecation

R=senorblanco
BUG=270143

Review URL: https://chromiumcodereview.appspot.com/22634006

git-svn-id: svn://svn.chromium.org/blink/trunk@155809 bbb929c8-8fbe-4397-9dbb-9b2b20218538