Update RecordReplaceDrawTest to generate and pass pictures

This CL splits the unit test changes out of (Fix sub-picture layer rendering bugs - https://codereview.chromium.org/597293002/).

For various reasons GrRecordReplaceDraw now needs to take an SkPicture (rather than an SkRecord and a BBH).

R=egdaniel@google.com, bsalomon@google.com

Author: robertphillips@google.com

Review URL: https://codereview.chromium.org/608823002
5 files changed