Good Build : 54.0.2810.2
Bad Build : 54.0.2811.0

Narrow Bisect URL : 
https://chromium.googlesource.com/chromium/src/+log/770c0cfd44f0a28c07c0f76ad6059f334d056b02..75e2993f8a310d9f0f1969c6a818f59c94354fc4?pretty=fuller&n=100

Suspecting : r408402?

Note : Above issue is also seen on Mac(10.10.5, 10.11.4) OS and will soon update Linux(14.04 LTS) info.
Kindly help to reassign if your change is not the cause of thiss issue.

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My change is still under an experimental flag and I checked, the page doesn't use ImageBitmap.

halcanary@: I saw that you had two changes:
SkPDF: refactor font subset: fewer copies
SkPdf: SkPDFFormXObject de-class-ified.

This issue looks like font related, could you please take a look.

Adding RB Label as this is a recent Regression. Please remove if not required.
Thank You.

Thanks for the report:

Attached is my minimized test case.

I'm working on it.

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I broke this with: https://skia.googlesource.com/skia/+/4b1e17e

test: https://fiddle.skia.org/c/@crbug_632574

fix: https://crrev.com/2197623002

The following revision refers to this bug:
  https://skia.googlesource.com/skia.git/+/5abbb44f682038abe01b8ee63fb22439af861dda

commit 5abbb44f682038abe01b8ee63fb22439af861dda
Author: halcanary <halcanary@google.com>
Date: Fri Jul 29 15:41:33 2016

SkPDF: flip saveLayer rightside up

Broken in https://skia.googlesource.com/skia/+/4b1e17e

BUG= 632574 
TBR=tomhudson@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2197623002

Review-Url: https://codereview.chromium.org/2197623002

[modify] https://crrev.com/5abbb44f682038abe01b8ee63fb22439af861dda/src/pdf/SkPDFDevice.cpp
[modify] https://crrev.com/5abbb44f682038abe01b8ee63fb22439af861dda/src/pdf/SkPDFFormXObject.cpp
[modify] https://crrev.com/5abbb44f682038abe01b8ee63fb22439af861dda/src/pdf/SkPDFFormXObject.h
[modify] https://crrev.com/5abbb44f682038abe01b8ee63fb22439af861dda/src/pdf/SkPDFShader.cpp

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f21e58de30c04701c063b0695cdbfd8c294b8a23

commit f21e58de30c04701c063b0695cdbfd8c294b8a23
Author: skia-deps-roller <skia-deps-roller@chromium.org>
Date: Fri Jul 29 18:49:41 2016

Roll src/third_party/skia/ 1e8761809..5db44aa2a (6 commits).

https://chromium.googlesource.com/skia.git/+log/1e8761809d76..5db44aa2aa4a

$ git log 1e8761809..5db44aa2a --date=short --no-merges --format='%ad %ae %s'
2016-07-29 mtklein GN: components as static library instead of source set
2016-07-29 msarett Fix various SkColorSpace bugs
2016-07-29 egdaniel Use HashSet instead of Dynamic hash for tracking vulkan resources
2016-07-29 fmalita [SVGDom] Parse style attributes
2016-07-29 halcanary SkPDF: flip saveLayer rightside up
2016-07-29 mtklein GN: quick doc

BUG= 632574 

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
TBR=tomhudson@google.com

Review-Url: https://codereview.chromium.org/2193593004
Cr-Commit-Position: refs/heads/master@{#408700}

[modify] https://crrev.com/f21e58de30c04701c063b0695cdbfd8c294b8a23/DEPS

Verified the fix on the latest M-54(54.0.2816.0) on Windows-7, Mac OS 10.11.5 and Linux Ubuntu 14.04 and this is working as intended. Attached is the screen-shot.


Adding the verified label therefore.

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halcanary@: Please close the issue as the fix is working as intended and verified in C#9.

Marking the issue as the Fixed as the fix has landed and verified.