commit 91a1db293d61df0fcb85e0f36d28416121fe7d0a
author Anders Hartvoll Ruud <andruud@chromium.org> Fri Sep 21 11:03:38 2018
committer Commit Bot <commit-bot@chromium.org> Fri Sep 21 11:03:38 2018
tree eadc44636f71821525258f81167c4d854d3e9462
parent 38180df35113f5a5e96b78da4bea1133660cc0c8

[css-properties-values-api] Use inherited value for substitution.

When a var()-reference produces tokens that are incompatible with the
current syntax, or the var()-reference refers to a variable that does not
exist, we currently always substitute the initial value, even for
inherited properties. This is incorrect, as the value should behave as
'unset', which means 'inherit' for inherited properties.

Note that if syntax-incompatible tokens are specified directly (not via a
var()-reference), we correctly behave as 'unset'. This is because the
var()-less case is handled by a different code path (variable.cc).

R=futhark@chromium.org

Bug: 641877
Change-Id: Ifdd5435ee77f4b8cd3998967713cb6fcb7e8d5f4
Reviewed-on: https://chromium-review.googlesource.com/1235579
Commit-Queue: Anders Ruud <andruud@chromium.org>
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#593145}