tree b2596397f41fadd5aea70c50c918b8021f9db093
parent 287a3fe6b9b1cda050922054a2bf2c55a4f28e76
author Robert Phillips <robertphillips@google.com> 1495124255 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1495126590 +0000

Switch over GrDiscardOp to IORef-ing the GrRenderTargetProxy

This cannot land until after https://skia-review.googlesource.com/c/14186/ (Split up opLists (take 3)) sticks.

This is because, prior to that CL, the SurfaceProxies have a ref on the last OpList that wrote to them. Since this CL adds a IORef from a discardOp in an opList to the SurfaceProxy this can result in a loop. After the required CL sticks, opLists have a IORef on the SurfaceProxy to which they wrote and the SurfaceProxy just has a raw back pointer so there will be no loop.

Change-Id: I198035f5dd5a8fad549052dea6aaa61477a89844
Reviewed-on: https://skia-review.googlesource.com/16663
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>