Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.

Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/77b3367ad5640838255d942a529ae48e6f67a389 (Adds text rendering support for OffscreenCanvas).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ae00821794fdd9f8d7c243a00277b1d6a7f061b5

commit ae00821794fdd9f8d7c243a00277b1d6a7f061b5
Author: Fernando Serboncini <fserb@chromium.org>
Date: Wed Oct 11 19:19:30 2017

FontStyleResolver's font need FontFallback for relative size

We now update the font before using it for CSSToLengthConversionData.

Bug:  772733 
Change-Id: Ib0728238569daf9b0c86d06db0e8431c13359e4a
Reviewed-on: https://chromium-review.googlesource.com/713235
Reviewed-by: Justin Novosad <junov@chromium.org>
Commit-Queue: Fernando Serboncini <fserb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#508058}
[modify] https://crrev.com/ae00821794fdd9f8d7c243a00277b1d6a7f061b5/third_party/WebKit/Source/core/css/resolver/FontStyleResolver.cpp
[modify] https://crrev.com/ae00821794fdd9f8d7c243a00277b1d6a7f061b5/third_party/WebKit/Source/core/css/resolver/FontStyleResolver.h
[modify] https://crrev.com/ae00821794fdd9f8d7c243a00277b1d6a7f061b5/third_party/WebKit/Source/core/css/resolver/FontStyleResolverTest.cpp
[modify] https://crrev.com/ae00821794fdd9f8d7c243a00277b1d6a7f061b5/third_party/WebKit/Source/core/css/threaded/FontObjectThreadedTest.cpp
[modify] https://crrev.com/ae00821794fdd9f8d7c243a00277b1d6a7f061b5/third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp

ClusterFuzz has detected this issue as fixed in range 508051:508100.

Detailed report: https://clusterfuzz.com/testcase?key=6068865250623488

Fuzzer: ochang_domfuzzer
Job Type: windows_asan_content_shell
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x00000014
Crash State:
  blink::CSSToLengthConversionData::FontSizes::Ex
  blink::CSSToLengthConversionData::ZoomedComputedPixels
  blink::CSSPrimitiveValue::ComputeLengthDouble
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=491007:491035
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=508051:508100

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6068865250623488

See https://github.com/google/clusterfuzz-tools for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 6068865250623488 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.