commit 4739955e98ba86900a5bbac0e3661601427a54d4
author fmalita <fmalita@chromium.org> Tue Feb 24 13:02:57 2015 -0800
committer Commit bot <commit-bot@chromium.org> Tue Feb 24 13:02:57 2015 -0800
tree 3287356324ecc8baf49bb73c1097c523bb21e804
parent 5b27b142f28d9c91ac38211ea611ba26259e1f85

Use an image generator to back SkPictureShader tiles.

To avoid lifetime issues for tiles backed by discardable memory, use an
image generator to re-generate them on the fly.

With this CL, we are now caching bitmap shaders wrapping discardable
pixel ref bitmaps backed by picture image generators.

(the CL also includes some minor/unrelated SkPictureShader cleanup)

BUG=skia:3220
R=reed@google.com,halcanary@google.com

Review URL: https://codereview.chromium.org/866773002