Add expect_final_byte_offset argument to CopyAndValidateTrailers().

This will be used in cr/231494986 where trailers sent on the
request/response stream should not have the :final-offset pseudo-header.

gfe-relnote: n/a.  No functional change.
PiperOrigin-RevId: 243730777
Change-Id: I1a5c729fb5aab3e3abdb0ce64dad5667faf794bf
diff --git a/epoll_server/platform/api/epoll_thread.h b/epoll_server/platform/api/epoll_thread.h
index a41dd28..97c0b08 100644
--- a/epoll_server/platform/api/epoll_thread.h
+++ b/epoll_server/platform/api/epoll_thread.h
@@ -7,7 +7,7 @@
 
 #include <string>
 
-#include "net/epoll_server/platform/impl/epoll_thread_impl.h"
+#include "net/tools/epoll_server/platform/impl/epoll_thread_impl.h"
 
 namespace epoll_server {