Gaps for text-decoration-skip: ink are calculated assuming the glyph orientation...

Gaps for text-decoration-skip: ink are calculated assuming the glyph orientation is the same as the run orientation
https://bugs.webkit.org/show_bug.cgi?id=128718

Reviewed by Darin Adler.

Source/WebCore:

This is a stop-gap patch to make underlines in CJK text not look terrible. A long-term fix is to refactor
showGlyphsWithAdvances to move rotation logic into a common place that the text-decoration-skip: ink code
can use.

Test: fast/css3-text/css3-text-decoration/text-decoration-skip/text-decoration-skip-orientation-upright.html

* rendering/InlineTextBox.cpp:
(WebCore::InlineTextBox::paintDecoration):

LayoutTests:

This test draws text that has descenders that would be skipped over if the glyph orientation was the same
as the run orientation. However, it uses text-orientation: upright to make those two orientations not equal.
It then compares this to no skipping at all.

* fast/css3-text/css3-text-decoration/text-decoration-skip/text-decoration-skip-orientation-upright-expected.html: Added.
* fast/css3-text/css3-text-decoration/text-decoration-skip/text-decoration-skip-orientation-upright.html: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@164046 268f45cc-cd09-0410-ab3c-d52691b4dbfc