Move navigations with POST or referrer to the shell.

components/html_viewer/html_viewer.cc

Index: components/html_viewer/html_viewer.cc
diff --git a/components/html_viewer/html_viewer.cc b/components/html_viewer/html_viewer.cc
index dd2043462673249b12cea833bf5f8197f00149f1..bd45b87b448a30d28a3f032ac6538d569e8fc473 100644
--- a/components/html_viewer/html_viewer.cc
+++ b/components/html_viewer/html_viewer.cc
@@ -53,7 +53,9 @@ class HTMLViewerApplication : public mojo::Application {
   void Initialize(ShellPtr shell, const String& url) override {
     ServiceProviderPtr service_provider;
     shell_ = shell.Pass();
-    shell_->ConnectToApplication("mojo:network_service",
+    mojo::URLRequestPtr request(mojo::URLRequest::New());
+    request->url = mojo::String::From("mojo:network_service");
+    shell_->ConnectToApplication(request.Pass(),
                                  GetProxy(&service_provider), nullptr);
     ConnectToService(service_provider.get(), &network_service_);
   }