Move constants for Sepia Tone and Grayscale filters to a separate file

[smfr]

17983d2

Move constants for Sepia Tone and Grayscale filters to a separate file
https://bugs.webkit.org/show_bug.cgi?id=76008

Reviewed by Myles C. Maxfield.

Use ColorMatrix as the canonical way to compute sepia and grayscale matrices, replacing duplicate code
in CSSFilter, FEColorMatrix and PlatformCAFiltersCocoa. Now the sepia and grayscale constants are only
in one place.

Made the non-USE_CA_FILTERS code path in PlatformCAFiltersCocoa compile (but this appears to be dead code).

* Source/WebCore/platform/graphics/ca/PlatformCAFilters.h:
* Source/WebCore/platform/graphics/ca/cocoa/PlatformCAFiltersCocoa.mm:
(WebCore::PlatformCAFilters::setFiltersOnLayer):
(WebCore::PlatformCAFilters::filterValueForOperation):
(WebCore::caColorMatrixFromColorMatrix):
(WebCore::PlatformCAFilters::colorMatrixValueForFilter):
* Source/WebCore/platform/graphics/filters/FEColorMatrix.cpp:
(WebCore::FEColorMatrix::calculateSaturateComponents):
(WebCore::FEColorMatrix::calculateHueRotateComponents):
* Source/WebCore/rendering/CSSFilter.cpp:
(WebCore::createGrayScaleEffect):
(WebCore::createSepiaEffect):

Canonical link: https://commits.webkit.org/254358@main

592e15c

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	🛠 🧪 win
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-debug	✅ 🛠 gtk	✅ 🛠 wincairo
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🛠 mac-AS-debug	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	✅ 🧪 api-mac	✅ 🧪 api-gtk
	✅ 🛠 tv	🧪 mac-wk1
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2
✅ 🛠 🧪 merge	✅ 🛠 watch	✅ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	✅ 🧪 mac-wk2-stress

[webkit-early-warning-system]

592e15c

Misc	iOS, tvOS & watchOS	macOS	Linux	Windows
✅ 🧪 style	✅ 🛠 ios	✅ 🛠 mac	✅ 🛠 wpe	🛠 🧪 win
✅ 🧪 bindings	✅ 🛠 ios-sim	✅ 🛠 mac-debug	✅ 🛠 gtk	✅ 🛠 wincairo
✅ 🧪 webkitperl	✅ 🧪 ios-wk2	✅ 🛠 mac-AS-debug	✅ 🧪 gtk-wk2
	✅ 🧪 api-ios	✅ 🧪 api-mac	✅ 🧪 api-gtk
	✅ 🛠 tv	🧪 mac-wk1
	✅ 🛠 tv-sim	✅ 🧪 mac-wk2
✅ 🛠 🧪 merge	✅ 🛠 watch	✅ 🧪 mac-AS-debug-wk2
	✅ 🛠 watch-sim	✅ 🧪 mac-wk2-stress

[litherum]

#if USE(CA_FILTERS)?

[webkit-commit-queue]

Committed 254358@main (17983d2): https://commits.webkit.org/254358@main

Reviewed commits have been landed. Closing PR #4222 and removing active labels.