Bug 1864055 [wpt PR 43065] - Resolve missing components during colors…

…pace conversion, a=testonly

Automatic update from web-platform-tests
Resolve missing components during colorspace conversion

https://csswg.sesse.net/css-color-4/#missing:

"""
For handling of missing component in color interpolation, see § 12.2
Interpolating with Missing Components.

For all other purposes, a missing component behaves as a zero value, in
the appropriate unit for that component: 0, 0%, or 0deg. This includes
rendering the color directly, converting it to another color space,
performing computations on the color component values, etc.
"""

Remaining color mix test failures may be invalid:
web-platform-tests/wpt#42940
web-platform-tests/wpt#43180

Bug: 1495694, 1445171
Change-Id: I0ecd334b595c9c1ff4d3cb2f655176dd3b3eea16
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5017402
Reviewed-by: Yi Xu <yiyixchromium.org>
Commit-Queue: Aaron Krajeski <aaronhkchromium.org>
Cr-Commit-Position: refs/heads/main{#1225694}

--

wpt-commits: 6e624cc9cb5dcba7a7e940aa51ea025ebe24a7e7
wpt-pr: 43065

UltraBlame original commit: 2b12ef1a74b23ed23a261ad7102f8fa5e96afa62

testing/web-platform/tests/css/css-color/parsing/color-computed-relative-color.html

@@ -2360,6 +2360,37 @@
 none
 '
 .
+Missing
+components
+are
+resolved
+to
+zero
+during
+color
+space
+conversion
+.
+/
+/
+https
+:
+/
+/
+drafts
+.
+csswg
+.
+org
+/
+css
+-
+color
+-
+4
+/
+#
+missing
 fuzzy_test_computed_color
 (
 rgb
@@ -2373,9 +2404,9 @@
 color
 (
 srgb
-none
-none
-none
+0
+0
+0
 )
 )
 ;
@@ -2394,9 +2425,9 @@
 color
 (
 srgb
-none
-none
-none
+0
+0
+0
 /
 none
 )
@@ -2421,7 +2452,7 @@
 0
 .
 2
-none
+0
 )
 )
 ;
@@ -2446,7 +2477,7 @@
 0
 .
 2
-none
+0
 )
 )
 ;
@@ -2511,7 +2542,7 @@
 0
 .
 4
-none
+0
 /
 0
 .
@@ -2559,25 +2590,6 @@
 )
 )
 ;
-/
-/
-FIXME
-:
-Clarify
-with
-spec
-editors
-if
-'
-none
-'
-should
-pass
-through
-to
-the
-constants
-.
 fuzzy_test_computed_color
 (
 rgb
@@ -4059,6 +4071,37 @@
 none
 '
 .
+Missing
+components
+are
+resolved
+to
+zero
+during
+color
+space
+conversion
+.
+/
+/
+https
+:
+/
+/
+drafts
+.
+csswg
+.
+org
+/
+css
+-
+color
+-
+4
+/
+#
+missing
 fuzzy_test_computed_color
 (
 hsl
@@ -4072,9 +4115,9 @@
 color
 (
 srgb
-none
-none
-none
+0
+0
+0
 )
 )
 ;
@@ -4093,9 +4136,9 @@
 color
 (
 srgb
-none
-none
-none
+0
+0
+0
 /
 none
 )
@@ -4116,7 +4159,7 @@
 srgb
 0
 0
-none
+0
 )
 )
 ;
@@ -4137,7 +4180,7 @@
 srgb
 0
 0
-none
+0
 )
 )
 ;
@@ -4185,7 +4228,9 @@
 color
 (
 srgb
-none
+0
+.
+6
 0
 .
 2
@@ -4222,7 +4267,7 @@
 srgb
 0
 0
-none
+0
 /
 0
 .
@@ -4294,7 +4339,9 @@
 color
 (
 srgb
-none
+0
+.
+6
 0
 .
 4
@@ -4308,25 +4355,6 @@
 )
 )
 ;
-/
-/
-FIXME
-:
-Clarify
-with
-spec
-editors
-if
-'
-none
-'
-should
-pass
-through
-to
-the
-constants
-.
 fuzzy_test_computed_color
 (
 hsl
@@ -5868,6 +5896,37 @@
 none
 '
 .
+Missing
+components
+are
+resolved
+to
+zero
+during
+color
+space
+conversion
+.
+/
+/
+https
+:
+/
+/
+drafts
+.
+csswg
+.
+org
+/
+css
+-
+color
+-
+4
+/
+#
+missing
 fuzzy_test_computed_color
 (
 hwb
@@ -5881,9 +5940,9 @@
 color
 (
 srgb
-none
-none
-none
+1
+0
+0
 )
 )
 ;
@@ -5902,9 +5961,9 @@
 color
 (
 srgb
-none
-none
-none
+1
+0
+0
 /
 none
 )
@@ -5929,7 +5988,7 @@
 0
 .
 2
-none
+1
 )
 )
 ;
@@ -5954,7 +6013,7 @@
 0
 .
 2
-none
+1
 )
 )
 ;
@@ -6002,7 +6061,9 @@
 color
 (
 srgb
-none
+0
+.
+6
 0
 .
 2
@@ -6041,7 +6102,9 @@
 .
 2
 1
-none
+0
+.
+2
 /
 0
 .
@@ -6113,7 +6176,9 @@
 color
 (
 srgb
-none
+0
+.
+5
 0
 .
 2
@@ -6127,25 +6192,6 @@
 )
 )
 ;
-/
-/
-FIXME
-:
-Clarify
-with
-spec
-editors
-if
-'
-none
-'
-should
-pass
-through
-to
-the
-constants
-.
 fuzzy_test_computed_color
 (
 hwb