Issue 859798 link

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Issue metadata

Status:	Assigned
Owner:	drott@chromium.org
Components:	Blink>Fonts
EstimatedDays:	----
NextAction:	----
OS:	Mac
Pri:	3
Type:	Bug

FontCache::PlatformFallbackFontForCharacter on Mac crashes if called with nullptr for font_data_to_substitute

Project Member Reported by drott@chromium.org, Jul 3

Issue description

Discovered in a synthetic test situation in
https://chromium-review.googlesource.com/c/chromium/src/+/1122407 - it does not get called like that outside of tests.

We should guard against that.

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Issue 859798 link

Issue metadata

FontCache::PlatformFallbackFontForCharacter on Mac crashes if called with nullptr for font_data_to_substitute

Issue description

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