Consider merging https://chromium.googlesource.com/chromium/blink/+/ffa891dd6e10d6744738718298de276740a1d290 Even with white-space: pre; we shouldn't create RenderTexts for whitespace-only nodes in flexbox. Test changes are minor whitespace removals, except for the crash test (which changed more, but still doesn't crash)
This change is not required because it is already tackled: https://github.com/WebKit/WebKit/blob/61a1009d68c4718583337288956333b630f6e904/Source/WebCore/rendering/updating/RenderTreeUpdater.cpp#L426 I think we can close this. Thanks!