WebCoreArgumentCoders only needs a few simple declarations from GraphicsContextGL.h. Refactor GraphicsContextGL.h allow the required pieces to be included with out need to pull in the entire, expensive to parse, header. Follow up to https://bugs.webkit.org/show_bug.cgi?id=250817.
<rdar://problem/104722312>
Pull request: https://github.com/WebKit/WebKit/pull/9201
Committed 259605@main (df7bdf36f1cc): <https://commits.webkit.org/259605@main> Reviewed commits have been landed. Closing PR #9201 and removing active labels.