test: Fix check-embed for chromium
test: Fix check-embed for chromium

We can't use `expect_load()` after logging in in the embedded frame, as
the topmost page doesn't reload.

stefwalter/cockpit,stefwalter/cockpit,deryni/cockpit,moraleslazaro/cockpit,SotolitoLabs/cockpit,stefwalter/cockpit,mareklibra/cockpit,deryni/cockpit,mvollmer/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,andreasn/cockpit,stefwalter/cockpit,SotolitoLabs/cockpit,mvollmer/cockpit,mvollmer/cockpit,cockpit-project/cockpit,petervo/cockpit,mareklibra/cockpit,petervo/cockpit,mareklibra/cockpit,garrett/cockpit,martinpitt/cockpit,SotolitoLabs/cockpit,deryni/cockpit,andreasn/cockpit,deryni/cockpit,cockpituous/cockpit,mareklibra/cockpit,Scribery/cockpit,martinpitt/cockpit,petervo/cockpit,SotolitoLabs/cockpit,andreasn/cockpit,SotolitoLabs/cockpit,Scribery/cockpit,Scribery/cockpit,petervo/cockpit,mvollmer/cockpit,SotolitoLabs/cockpit,deryni/cockpit,stefwalter/cockpit,stefwalter/cockpit,petervo/cockpit,Scribery/cockpit,garrett/cockpit,petervo/cockpit,petervo/cockpit,cockpituous/cockpit,SotolitoLabs/cockpit,andreasn/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,deryni/cockpit,martinpitt/cockpit,garrett/cockpit,Scribery/cockpit,andreasn/cockpit,cockpit-project/cockpit,mareklibra/cockpit,martinpitt/cockpit,moraleslazaro/cockpit,moraleslazaro/cockpit,martinpitt/cockpit,mvollmer/cockpit,Scribery/cockpit,andreasn/cockpit,mareklibra/cockpit,garrett/cockpit,cockpituous/cockpit,moraleslazaro/cockpit,cockpituous/cockpit,garrett/cockpit,stefwalter/cockpit,cockpituous/cockpit,cockpit-project/cockpit,Scribery/cockpit,mareklibra/cockpit,andreasn/cockpit,moraleslazaro/cockpit,cockpit-project/cockpit,deryni/cockpit