PlzNavigate: ensure we don't create extra-processes for ServiceWorkers

content/browser/frame_host/render_frame_host_manager.cc

Index: content/browser/frame_host/render_frame_host_manager.cc
diff --git a/content/browser/frame_host/render_frame_host_manager.cc b/content/browser/frame_host/render_frame_host_manager.cc
index 5ae522b0a7b448c1cf8ab395d06544110703e08e..a925d12a43f1a3134d1b158dd7fbdabce64342ba 100644
--- a/content/browser/frame_host/render_frame_host_manager.cc
+++ b/content/browser/frame_host/render_frame_host_manager.cc
@@ -687,6 +687,7 @@ void RenderFrameHostManager::DidCreateNavigationRequest(
     NavigationRequest* request) {
   CHECK(IsBrowserSideNavigationEnabled());
   RenderFrameHostImpl* dest_rfh = GetFrameHostForNavigation(*request);
+  dest_rfh->GetSiteInstance()->UsedFor(request->common_params().url);
   DCHECK(dest_rfh);
   request->set_associated_site_instance_type(
       dest_rfh == render_frame_host_.get()