The concept of inherited style is about to get a bit more complicated, and this
will prevent consumers from doing it wrong.
Part 1 of Gecko bug1382806. r=emilio
Before this commit, we assumed that if the element had no parent element, it was
the root of the document, which is plain false, since we can arrive there from,
let's say, getComputedStyle on a detached node.
Bug: 1374062
Reviewed-By: heycam
MozReview-Commit-ID: 65DxdzXgd0J
Text style is always resolved via ServoStyleSet::ResolveStyleForText, either
from the frame constructor initially, or from
ServoRestyleManager::ProcessPostTraversalForText.
So text-only adjustments should go there instead. Since that doesn't call into
cascade(), all the code that passes `pseudo` there is dead code we can remove.
MozReview-Commit-ID: jpbBYpLlUL
Signed-off-by: Emilio Cobos Álvarez <emilio@crisal.io>
To ease comparison between Gecko's `nsStyleContext::ApplyStyleFixups` and the
Servo equivalent, move them into a similar ordering.
MozReview-Commit-ID: GV89pbzA8IH
Ports the Gecko fixup for text-combine-upright writing mode to Servo. In
addition, this passes the current pseudo element (if any) down to the cascade
for use during the fixup process.
MozReview-Commit-ID: BkHd4AvSsOt
