Move navigations with POST or referrer to the shell.

mojo/common/tracing_impl.cc

Index: mojo/common/tracing_impl.cc
diff --git a/mojo/common/tracing_impl.cc b/mojo/common/tracing_impl.cc
index 29a520d7c427930c5c03f7b1bddf033a1bbba10f..b08c53f8605f7f6908da96d281eae7928ff7152a 100644
--- a/mojo/common/tracing_impl.cc
+++ b/mojo/common/tracing_impl.cc
@@ -18,7 +18,9 @@ TracingImpl::~TracingImpl() {
 }
 
 void TracingImpl::Initialize(ApplicationImpl* app) {
-  ApplicationConnection* connection = app->ConnectToApplication("mojo:tracing");
+  mojo::URLRequestPtr request(mojo::URLRequest::New());
+  request->url = mojo::String::From("mojo:tracing");
+  ApplicationConnection* connection = app->ConnectToApplication(request.Pass());
   connection->AddService(this);
 }