Extract a Connector interface from Shell that can be cloned & passed to other threads

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 96b971dfdf57e2106c8d681053a26a5229c5a855..c53f62782b946abf40f7dfbf6b94b1cc1120d019 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -6079,8 +6079,10 @@ mojo::shell::mojom::InterfaceProviderPtr RenderFrameImpl::ConnectToApplication(
   mojo::Array<mojo::String> all_interfaces;
   all_interfaces.push_back("*");
   filter->filter.insert("*", std::move(all_interfaces));
-  mojo_shell_->Connect(
-      url.spec(), mojo::shell::mojom::Shell::kUserInherit,
+  mojo::shell::mojom::ConnectorPtr connector;
+  mojo_shell_->GetConnector(GetProxy(&connector));
+  connector->Connect(
+      url.spec(), mojo::shell::mojom::Connector::kUserInherit,
       GetProxy(&interface_provider), nullptr, std::move(filter),
       base::Bind(&OnGotInstanceID));
   return interface_provider;