Re-add SkPictureStateTree::Iterator::draw() SaveFlags.

This is a SkPictureStateTree-only revert of r14253.

https://codereview.chromium.org/241453003

(It introduced ChromeOS regressions and the later r14319 fix got
reverted for different reasons).

R=bsalomon@google.com

Review URL: https://codereview.chromium.org/250803006

git-svn-id: http://skia.googlecode.com/svn/trunk/src@14384 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed