PlzNavigate: set the error code in NavigationHandle on abort

extensions/browser/extension_navigation_throttle.cc

Index: extensions/browser/extension_navigation_throttle.cc
diff --git a/extensions/browser/extension_navigation_throttle.cc b/extensions/browser/extension_navigation_throttle.cc
index 68c0a92e340da9750e1fcff31bd267476f9f0e00..0c06bd83cffa8d41a921eba9972088fcdd0a4561 100644
--- a/extensions/browser/extension_navigation_throttle.cc
+++ b/extensions/browser/extension_navigation_throttle.cc
@@ -90,7 +90,7 @@ ExtensionNavigationThrottle::WillStartRequest() {
             is_guest, extension, owner_extension, partition_id, resource_path,
             navigation_handle()->GetPageTransition(), &allowed);
         if (!allowed)
-          return content::NavigationThrottle::CANCEL;
+          return content::NavigationThrottle::BLOCK_REQUEST;
       }
     }