Bring RFH/RVH unit tests closer to reality of how RF/RV are initialized

content/browser/frame_host/navigation_controller_impl_unittest.cc

Index: content/browser/frame_host/navigation_controller_impl_unittest.cc
diff --git a/content/browser/frame_host/navigation_controller_impl_unittest.cc b/content/browser/frame_host/navigation_controller_impl_unittest.cc
index ff73239e13a3af1036a5507367388b41d16d3d2f..13d5bf40f4bb591955e7e1e8f49f46946d783909 100644
--- a/content/browser/frame_host/navigation_controller_impl_unittest.cc
+++ b/content/browser/frame_host/navigation_controller_impl_unittest.cc
@@ -2824,6 +2824,10 @@ TEST_F(NavigationControllerTest, RestoreNavigateAfterFailure) {
       0, NavigationController::RESTORE_LAST_SESSION_EXITED_CLEANLY, &entries);
   ASSERT_EQ(0u, entries.size());
 
+  // Ensure the RenderFrame is initialized before simulating events coming from
+  // it.
+  main_test_rfh()->InitializeRenderFrameIfNeeded();
+
   // Before navigating to the restored entry, it should have a restore_type
   // and no SiteInstance.
   entry = our_controller.GetEntryAtIndex(0);