Sorry, I forgot to change the "Did this work before?"... Yes it did, I'm pretty sure this was introduced a few versions ago in the stable version.  

Thanks for taking the time to file this. As a workaround, you can add 'shape-rendering="crispEdges"' to the paths to disable anti-aliasing.


@skia team, I bisected this to [1] which is where osx switched to ganesh. I have a simpler testcase [2] where our AA now differs from software and Safari. Is this change in behavior intended?

[1] https://chromium.googlesource.com/chromium/src/+/8325892c2efdef8cff86ba16e7569f8b424daeda
[2] http://output.jsbin.com/soyocoh

I tried adding 'shape-rendering="crispEdges"' and it has the effect of making the SVG look like something from the 1980s :-) The preference would be to have it render as per Safari or Preview in MacOS. 

I think this is likely to be another instance of skbug.com/5989

The following revision refers to this bug:
  https://skia.googlesource.com/skia.git/+/92964124c5ff61729357a51dc212ca5938093e89

commit 92964124c5ff61729357a51dc212ca5938093e89
Author: Jim Van Verth <jvanverth@google.com>
Date: Wed Dec 07 15:40:09 2016

Fix SDF generation for pixel-aligned paths

BUG= 668550 

Change-Id: Ib496db82c7391aca61b31afaeb5445260170cc49
Reviewed-on: https://skia-review.googlesource.com/5549
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>

[modify] https://crrev.com/92964124c5ff61729357a51dc212ca5938093e89/gm/pathfill.cpp
[modify] https://crrev.com/92964124c5ff61729357a51dc212ca5938093e89/src/gpu/batches/GrAADistanceFieldPathRenderer.cpp
[modify] https://crrev.com/92964124c5ff61729357a51dc212ca5938093e89/src/gpu/batches/GrAADistanceFieldPathRenderer.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8fdb059ae890a4c736a2cd3f2638ceb083a8f589

commit 8fdb059ae890a4c736a2cd3f2638ceb083a8f589
Author: skia-deps-roller <skia-deps-roller@chromium.org>
Date: Thu Dec 08 03:03:31 2016

Roll src/third_party/skia/ d7e16661b..45aac57ac (19 commits).

https://skia.googlesource.com/skia.git/+log/d7e16661bb36..45aac57ac619

$ git log d7e16661b..45aac57ac --date=short --no-merges --format='%ad %ae %s'
2016-12-08 robertphillips Revert "Add antialiasing to SkDropShadowImageFilter's shadow draw"
2016-12-07 bsalomon Rename GrBatchFlushState to GrOpFlushState
2016-12-07 bsalomon Rename GrRTC::drawBatch to addDrawOp and local vars in GrRTC.cpp
2016-12-07 reed no need for SK_SUPPORT_LEGACY_CANVAS_IS_REFCNT anymore
2016-12-07 reed remove SK_SUPPORT_LEGACY_CANVAS_IS_REFCNT from android
2016-12-07 halcanary SkBitmap::ComputeIsOpaque -> SkPixmap::computeIsOpaque
2016-12-07 jvanverth Revert "Fix SDF generation for pixel-aligned paths"
2016-12-07 halcanary fix build. tests/BitmapTest w/ nogpu
2016-12-07 reed remove SK_SUPPORT_LEGACY_CLIP_REGIONOPS for android
2016-12-07 halcanary SkBitmap::ComputeIsOpaque and SkBitmap::eraseColor support F16
2016-12-07 bsalomon Rename batch->op in GrOpList and subclasses
2016-12-07 bsalomon Rework GrRenderTargetOpList::setupDstReadIfNecessary.
2016-12-07 reed hide emboss from everyone (except android for now)
2016-12-02 brianosman Add NarrowRGB gamut mode to SampleApp
2016-12-07 brianosman Skip the sRGB mip-map testing on command buffer
2016-12-07 mtklein gn_to_bp.py fixes
2016-12-07 robertphillips Add antialiasing to SkDropShadowImageFilter's shadow draw
2016-12-07 halcanary Revert "SkImageEncoder::* going away"
2016-12-07 jvanverth Fix SDF generation for pixel-aligned paths

BUG= 668550 

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
TBR=herb@google.com

Review-Url: https://codereview.chromium.org/2556283003
Cr-Commit-Position: refs/heads/master@{#437161}

[modify] https://crrev.com/8fdb059ae890a4c736a2cd3f2638ceb083a8f589/DEPS

 Issue 673865  has been merged into this issue.

The following revision refers to this bug:
  https://skia.googlesource.com/skia.git/+/ecdb686a5cae733ecd914c8bd5fd407b45ee2594

commit ecdb686a5cae733ecd914c8bd5fd407b45ee2594
Author: Jim Van Verth <jvanverth@google.com>
Date: Tue Dec 13 23:17:47 2016

Fix SDF generation for pixel-aligned paths (take two)

BUG= 668550 

Change-Id: Ic771818bd5a4a46b83fdb82b69b98cb6b93a23a2
Reviewed-on: https://skia-review.googlesource.com/5697
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>

[modify] https://crrev.com/ecdb686a5cae733ecd914c8bd5fd407b45ee2594/gm/pathfill.cpp
[modify] https://crrev.com/ecdb686a5cae733ecd914c8bd5fd407b45ee2594/src/gpu/batches/GrAADistanceFieldPathRenderer.cpp
[modify] https://crrev.com/ecdb686a5cae733ecd914c8bd5fd407b45ee2594/src/gpu/batches/GrAADistanceFieldPathRenderer.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bcd68bcb14206d4f26c5798ed714a0878ac09b28

commit bcd68bcb14206d4f26c5798ed714a0878ac09b28
Author: skia-deps-roller <skia-deps-roller@chromium.org>
Date: Wed Dec 14 13:16:37 2016

Roll src/third_party/skia/ 24f19780d..d316e77c1 (9 commits).

https://skia.googlesource.com/skia.git/+log/24f19780d1e7..d316e77c1e19

$ git log 24f19780d..d316e77c1 --date=short --no-merges --format='%ad %ae %s'
2016-12-14 robertphillips Revert "Add a deferred copy surface (take 2)"
2016-12-14 mtklein Revert "clamp to premul when reading premul sRGB"
2016-12-14 mtklein Revert "SkNx basically always is fast now."
2016-12-14 mtklein Revert "Do not build the ktx encoder for android framework"
2016-12-13 jvanverth Fix SDF generation for pixel-aligned paths (take two)
2016-12-13 scroggo Do not build the ktx encoder for android framework
2016-12-13 mtklein clamp to premul when reading premul sRGB
2016-12-13 mtklein SkNx basically always is fast now.
2016-12-13 robertphillips Add a deferred copy surface (take 2)

BUG= 668550 

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel
TBR=msarett@google.com

Review-Url: https://codereview.chromium.org/2572103002
Cr-Commit-Position: refs/heads/master@{#438499}

[modify] https://crrev.com/bcd68bcb14206d4f26c5798ed714a0878ac09b28/DEPS

Should be working in version 57.0.2953.0.

Docs is running into this bug for some updates they're doing, so it would be good to cherry-pick it back. It's been there since at least M55.

[Automated comment] DEPS changes referenced in bugdroid comments, needs manual review.

This is looking good in Version 57.0.2952.0. Awesome job :-) 

Approved for merge into M56

The following revision refers to this bug:
  https://skia.googlesource.com/skia.git/+/5c25cbedfb54b8b4bb383f775eb454c842e4fa55

commit 5c25cbedfb54b8b4bb383f775eb454c842e4fa55
Author: Brian Salomon <bsalomon@google.com>
Date: Thu Dec 22 14:39:40 2016

Fix SDF generation for pixel-aligned paths (take two)

Cherry-pick to M56

BUG= 668550 

Change-Id: Ic771818bd5a4a46b83fdb82b69b98cb6b93a23a2
Reviewed-on: https://skia-review.googlesource.com/5697
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-on: https://skia-review.googlesource.com/6413

[modify] https://crrev.com/5c25cbedfb54b8b4bb383f775eb454c842e4fa55/gm/pathfill.cpp
[modify] https://crrev.com/5c25cbedfb54b8b4bb383f775eb454c842e4fa55/src/gpu/batches/GrAADistanceFieldPathRenderer.cpp
[modify] https://crrev.com/5c25cbedfb54b8b4bb383f775eb454c842e4fa55/src/gpu/batches/GrAADistanceFieldPathRenderer.h