Create NavigationHandles for interstitials if needed

content/browser/frame_host/navigator_delegate.cc

Index: content/browser/frame_host/navigator_delegate.cc
diff --git a/content/browser/frame_host/navigator_delegate.cc b/content/browser/frame_host/navigator_delegate.cc
index 416be628a96ca7fbc8545ab95007fa198c700e59..0c812b73ff2c4d13fc36c84d1ad62d7d40478d0f 100644
--- a/content/browser/frame_host/navigator_delegate.cc
+++ b/content/browser/frame_host/navigator_delegate.cc
@@ -18,4 +18,10 @@ bool NavigatorDelegate::ShouldPreserveAbortedURLs() {
   return false;
 }
 
+ScopedVector<NavigationThrottle>
+NavigatorDelegate::CreateThrottlesForNavigation(
+    NavigationHandle* navigation_handle) {
+  return ScopedVector<NavigationThrottle>();
+}
+
 }  // namespace content