The following revision refers to this bug:
  https://pdfium.googlesource.com/pdfium/+/6bebd2e3cfb7790580722836d0debab3103c94d0

commit 6bebd2e3cfb7790580722836d0debab3103c94d0
Author: Henrique Nakashima <hnakashima@chromium.org>
Date: Wed Apr 11 00:13:36 2018

Avoid stack overflow when loading CPDF_Function.

CPDF_StitchFuncs that reference each other create a Load() loop.
Maintaining a set of the visited CPDF_Objects during a Load()
call tree prevents that.

Bug:  chromium:830221 
Change-Id: I6f494da16c6d79f05870ff85cff38ff8fe69ecfe
Reviewed-on: https://pdfium-review.googlesource.com/30050
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_sampledfunc.cpp
[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_psfunc.h
[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_function.cpp
[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_function.h
[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_stitchfunc.h
[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_stitchfunc.cpp
[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_expintfunc.cpp
[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_expintfunc.h
[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_psfunc.cpp
[modify] https://crrev.com/6bebd2e3cfb7790580722836d0debab3103c94d0/core/fpdfapi/page/cpdf_sampledfunc.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ff4cbba00a2f6f40c62e3c64526e860d995cd2e1

commit ff4cbba00a2f6f40c62e3c64526e860d995cd2e1
Author: pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Date: Wed Apr 11 08:08:14 2018

Roll src/third_party/pdfium/ 4027887ee..6bebd2e3c (10 commits)

https://pdfium.googlesource.com/pdfium.git/+log/4027887ee29a..6bebd2e3cfb7

$ git log 4027887ee..6bebd2e3c --date=short --no-merges --format='%ad %ae %s'
2018-04-11 hnakashima Avoid stack overflow when loading CPDF_Function.
2018-04-10 thestig Add static_asserts for FX_RECT and FX_COLORREF.
2018-04-10 thestig Load CIDToGIDMap stream for CID fonts if it exists.
2018-04-10 rharrison Roll DEPS for Clang and build
2018-04-10 rharrison Add an assert to make sure all code is included in static lib
2018-04-10 thestig Remove CFX_Rect.
2018-04-10 thestig Change CFX_RenderDevice::FillRect() to take FX_RECT by const-ref.
2018-04-10 thestig Change FillRectWithBlend methods to take FX_RECT by const-ref.
2018-04-10 hnakashima Implement CPDFSDK_XFAWidgetHandler::OnKillFocus.
2018-04-10 hnakashima Break down CXFA_FFWidget::On{L|R}ButtonDown() into two steps.

Created with:
  roll-dep src/third_party/pdfium
BUG= chromium:830221 , chromium:813705 , chromium:820256 , chromium:820256 


The AutoRoll server is located here: https://pdfium-roll.skia.org

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=dsinclair@chromium.org

Change-Id: Iae9f069e452471eac037e59354fa106060058af5
Reviewed-on: https://chromium-review.googlesource.com/1005962
Reviewed-by: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#549817}
[modify] https://crrev.com/ff4cbba00a2f6f40c62e3c64526e860d995cd2e1/DEPS

Can I add chromium-830221.pdf to the repo as a test as well?

Sure.

Great, thank you! https://pdfium-review.googlesource.com/c/pdfium/+/30671

The following revision refers to this bug:
  https://pdfium.googlesource.com/pdfium/+/97b47dc407e772a82782d5d64de5560992df2bf9

commit 97b47dc407e772a82782d5d64de5560992df2bf9
Author: Henrique Nakashima <hnakashima@chromium.org>
Date: Fri Apr 13 20:04:27 2018

Add test for circular CPDF_Function::Load().

Bug:  chromium:830221 
Change-Id: Ia96086a1b930600a4fb9054123c867d1c8b301eb
Reviewed-on: https://pdfium-review.googlesource.com/30671
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>

[modify] https://crrev.com/97b47dc407e772a82782d5d64de5560992df2bf9/BUILD.gn
[add] https://crrev.com/97b47dc407e772a82782d5d64de5560992df2bf9/testing/resources/bug_830221.pdf
[add] https://crrev.com/97b47dc407e772a82782d5d64de5560992df2bf9/core/fpdfapi/page/cpdf_function_embeddertest.cpp

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/741fa132890291513a192ba7d4e1ff96fd39de72

commit 741fa132890291513a192ba7d4e1ff96fd39de72
Author: pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Date: Fri Apr 13 23:05:59 2018

Roll src/third_party/pdfium/ 996c93068..b71d24c1a (8 commits)

https://pdfium.googlesource.com/pdfium.git/+log/996c93068bfc..b71d24c1affe

$ git log 996c93068..b71d24c1a --date=short --no-merges --format='%ad %ae %s'
2018-04-13 thestig Patch lcms to mark data structures as const.
2018-04-13 npm Fix integer overflow in CPDF_Font::FallbackFontFromCharcode
2018-04-13 hnakashima Add test for circular CPDF_Function::Load().
2018-04-13 thestig Add CPDF_ColorState::SetPattern().
2018-04-13 thestig Get rid of CPDF_Color::GetColorSpace().
2018-04-13 dsinclair Add CPDF_Metadata unittests
2018-04-13 dsinclair Hide XML parsing inside CXFA_XMLLocale
2018-04-13 dsinclair Move SharedForm check to CPDF_Metadata class

Created with:
  roll-dep src/third_party/pdfium
BUG= chromium:831583 , chromium:830221 


The AutoRoll server is located here: https://pdfium-roll.skia.org

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=dsinclair@chromium.org

Change-Id: I5cd3fc28ca70459b9d57cf025cd02fba8e5d81cc
Reviewed-on: https://chromium-review.googlesource.com/1013045
Commit-Queue: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#550775}
[modify] https://crrev.com/741fa132890291513a192ba7d4e1ff96fd39de72/DEPS

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/741fa132890291513a192ba7d4e1ff96fd39de72

commit 741fa132890291513a192ba7d4e1ff96fd39de72
Author: pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Date: Fri Apr 13 23:05:59 2018

Roll src/third_party/pdfium/ 996c93068..b71d24c1a (8 commits)

https://pdfium.googlesource.com/pdfium.git/+log/996c93068bfc..b71d24c1affe

$ git log 996c93068..b71d24c1a --date=short --no-merges --format='%ad %ae %s'
2018-04-13 thestig Patch lcms to mark data structures as const.
2018-04-13 npm Fix integer overflow in CPDF_Font::FallbackFontFromCharcode
2018-04-13 hnakashima Add test for circular CPDF_Function::Load().
2018-04-13 thestig Add CPDF_ColorState::SetPattern().
2018-04-13 thestig Get rid of CPDF_Color::GetColorSpace().
2018-04-13 dsinclair Add CPDF_Metadata unittests
2018-04-13 dsinclair Hide XML parsing inside CXFA_XMLLocale
2018-04-13 dsinclair Move SharedForm check to CPDF_Metadata class

Created with:
  roll-dep src/third_party/pdfium
BUG= chromium:831583 , chromium:830221 


The AutoRoll server is located here: https://pdfium-roll.skia.org

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=dsinclair@chromium.org

Change-Id: I5cd3fc28ca70459b9d57cf025cd02fba8e5d81cc
Reviewed-on: https://chromium-review.googlesource.com/1013045
Commit-Queue: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#550775}
[modify] https://crrev.com/741fa132890291513a192ba7d4e1ff96fd39de72/DEPS