Add a user id parameter to connections

mojo/shell/runner/child/native_apptest_target.cc

Index: mojo/shell/runner/child/native_apptest_target.cc
diff --git a/mojo/shell/runner/child/native_apptest_target.cc b/mojo/shell/runner/child/native_apptest_target.cc
index 5f322d7db53a62f211a552f116a2a6f6ae27ac1b..d2747c5c193c1031a6f9c56de3056228eef3570c 100644
--- a/mojo/shell/runner/child/native_apptest_target.cc
+++ b/mojo/shell/runner/child/native_apptest_target.cc
@@ -29,7 +29,7 @@ class TargetApplicationDelegate
  private:
   // mojo::ShellClient:
   void Initialize(mojo::Shell* shell, const std::string& url,
-                  uint32_t id) override {}
+                  uint32_t id, uint32_t user_id) override {}
   bool AcceptConnection(mojo::Connection* connection) override {
     connection->AddInterface<mojo::shell::test::TestNativeService>(this);
     return true;