Delete an opList's clips when it survives a flush

Bug: skia:7190
Change-Id: I22454fc25f928b6892cbaa5533baa09aeec1b5f4
Reviewed-on: https://skia-review.googlesource.com/74066
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
1 file changed