Test expectation: OOPIFs vs user gesture propagation via postMessage.

third_party/WebKit/LayoutTests/FlagExpectations/site-per-process

Index: third_party/WebKit/LayoutTests/FlagExpectations/site-per-process
diff --git a/third_party/WebKit/LayoutTests/FlagExpectations/site-per-process b/third_party/WebKit/LayoutTests/FlagExpectations/site-per-process
index 4f600072bdcdaaf4b876a448a0dacdadeeceedb0..ad0f7e61dc6ed9dad16dadda99cbe16c126f7a15 100644
--- a/third_party/WebKit/LayoutTests/FlagExpectations/site-per-process
+++ b/third_party/WebKit/LayoutTests/FlagExpectations/site-per-process
@@ -1,6 +1,9 @@
 # These tests currently fail when they run with --site-per-process.
 # See https://crbug.com/477150.
 
+# https://crbug.com/661725 - Propagating user gesture via postMessage doesn't work for OOPIFs
+crbug.com/661725 http/tests/security/frameNavigation/xss-ALLOWED-top-navigation-after-postMessage.html [ Timeout ]
+
 # https://crbug.com/611838 - regression when geolocation tests use JS mock.
 crbug.com/611838 http/tests/security/powerfulFeatureRestrictions/geolocation-on-secure-origin-in-insecure-origin.html [ Timeout ]