tree f211193c85b59c6a2bebcbfc2a315e6b756d2f4a
parent 3e47a3529df73a75d224e28fadcf56097e71b090
author Ian Kilpatrick <ikilpatrick@chromium.org> 1555626053 -0700
committer Chromium WPT Sync <blink-w3c-test-autoroller@chromium.org> 1555626053 -0700

[LayoutNG] Fix crash for zero block-size floats.

Floats are amazing. For the child HasClearancePastAdjoiningFloats check
within HandleInflow we need to ignore zero-block-size floats.

They aren't adjoining for the purposes of that check. However we do
need to keep track of if there are adjoining floats which need to
have layout performed.

This introduces a third(!) type of NGFLoatTypes which is used to keep
track of this.

When calculating the AdjoiningFloatType we compute the margin-box
block-size of the unpositioned float.

Bug: 944083
Change-Id: Ic2d6e00e680853568caef30e002535db0cf050d3