Make the request initiator Optional

content/child/web_url_loader_impl.cc

Index: content/child/web_url_loader_impl.cc
diff --git a/content/child/web_url_loader_impl.cc b/content/child/web_url_loader_impl.cc
index 11431b1e48ed683d7ac312a451601c97c8a86303..8f017c326f68bc304e9cff3676e6302b49de8d50 100644
--- a/content/child/web_url_loader_impl.cc
+++ b/content/child/web_url_loader_impl.cc
@@ -529,7 +529,10 @@ void WebURLLoaderImpl::Context::Start(const WebURLRequest& request,
   resource_request->method = method;
   resource_request->url = url;
   resource_request->first_party_for_cookies = request.firstPartyForCookies();
-  resource_request->request_initiator = request.requestorOrigin();
+  if (!request.requestorOrigin().isNull()) {
+    resource_request->request_initiator =
+        new url::NullableOrigin(request.requestorOrigin());

[nasko, 2016/10/10 22:28:11]

Isn't the goal of a nullable origin to have it always present, but being able to
have a null value? In this case I wouldn't expect to have a conditional
statement around this assignment.

+  }
   resource_request->referrer = referrer_url;
 
   referrer_policy_ = request.referrerPolicy();