I frequently see this error on stderr when running the layout tests locally: ERROR: Unhandled web process message 'WebCookieManager:SetHTTPCookieAcceptPolicy'
<rdar://problem/38998971>
This started happening after Bug 183519, because that removed support in the WebContent process for receiving/handling this message. I should have removed the code in WebCookieManagerProxy::setHTTPCookieAcceptPolicy that spams the WebContent process with this changed state. The Network process (which is also messaged in that same place) is the only process that needs this information.
Created attachment 336773 [details] Patch
Committed r230076: <https://trac.webkit.org/changeset/230076>