Revert "remove flag for legacy copyTo -- call sites have been updated"

This reverts commit 85586a92f50942ede4422aca7308b9d8a88469db.

git-svn-id: http://skia.googlecode.com/svn/trunk@13719 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed