Fix clang tidy bugprone-move-forwarding-reference static analyzer warnings in WebKitLegacy. Found by clang static analyzer. Only one issue remaining after WTF fixes in Source/WebKitLegacy/mac/Misc/WebDownload.mm.
<rdar://problem/88982792>
Created attachment 452088 [details] Patch v1
Comment on attachment 452088 [details] Patch v1 Adding cq+ since mac-wk1 tests passed.
Committed r289909 (247339@main): <https://commits.webkit.org/247339@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 452088 [details].