PlzNavigate: fix empty FirstPartyForCookies in tests.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index a10d6b04d0ea6d03d483c30eafca6bda8ae38b1b..027b5a62183d12af29a1e4285ea9da43a90b6056 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -6286,6 +6286,14 @@ void RenderFrameImpl::BeginNavigation(const NavigationPolicyInfo& info) {
 
   blink::WebURLRequest& request = info.url_request;
 
+  // Set RequestorOrigin and FirstPartyForCookies
+  WebDocument frame_document = frame_->GetDocument();
+  if (request.GetFrameType() == blink::WebURLRequest::kFrameTypeTopLevel)
+    request.SetFirstPartyForCookies(request.Url());
+  else
+    request.SetFirstPartyForCookies(frame_document.FirstPartyForCookies());
+  request.SetRequestorOrigin(frame_document.GetSecurityOrigin());
+
   // Note: At this stage, the goal is to apply all the modifications the
   // renderer wants to make to the request, and then send it to the browser, so
   // that the actual network request can be started. Ideally, all such
@@ -6298,14 +6306,6 @@ void RenderFrameImpl::BeginNavigation(const NavigationPolicyInfo& info) {
   // else in blink.
   WillSendRequest(request);
 
-  // Set RequestorOrigin and FirstPartyForCookies.
-  WebDocument frame_document = frame_->GetDocument();
-  if (request.GetFrameType() == blink::WebURLRequest::kFrameTypeTopLevel)
-    request.SetFirstPartyForCookies(request.Url());
-  else
-    request.SetFirstPartyForCookies(frame_document.FirstPartyForCookies());
-  request.SetRequestorOrigin(frame_document.GetSecurityOrigin());
-
   // Update the transition type of the request for client side redirects.
   if (!info.url_request.GetExtraData())
     info.url_request.SetExtraData(new RequestExtraData());