Rename FrameViewLayoutContext to LocalFrameViewLayoutContext, as it is associated with a LocalFrameView.
Pull request: https://github.com/WebKit/WebKit/pull/11559
Committed 261773@main (b0f2b6b2e020): <https://commits.webkit.org/261773@main> Reviewed commits have been landed. Closing PR #11559 and removing active labels.
<rdar://problem/106827676>
Re-opening for pull request https://github.com/Webkit/WebKit/pull/11258