AK: Rename adopt() to adopt_ref()

This makes it more symmetrical with adopt_own() (which is used to
create a NonnullOwnPtr from the result of a naked new.)

Userland/Libraries/LibWebSocket/WebSocket.cpp

@@ -21,7 +21,7 @@ namespace WebSocket {
 
 NonnullRefPtr<WebSocket> WebSocket::create(ConnectionInfo connection)
 {
-    return adopt(*new WebSocket(connection));
+    return adopt_ref(*new WebSocket(connection));
 }
 
 WebSocket::WebSocket(ConnectionInfo connection)