Mojo: abstract interface implementation from generated Stub classes

mojo/examples/aura_demo/aura_demo.cc

Index: mojo/examples/aura_demo/aura_demo.cc
diff --git a/mojo/examples/aura_demo/aura_demo.cc b/mojo/examples/aura_demo/aura_demo.cc
index 4ed3bd764c32137cba7d3e89d88014a0b87a06b1..2ac77cd5dc350918db84703c94160958d3dc8d57 100644
--- a/mojo/examples/aura_demo/aura_demo.cc
+++ b/mojo/examples/aura_demo/aura_demo.cc
@@ -116,12 +116,10 @@ class DemoWindowTreeClient : public aura::client::WindowTreeClient {
   DISALLOW_COPY_AND_ASSIGN(DemoWindowTreeClient);
 };
 
-class AuraDemo : public ShellClientStub {
+class AuraDemo : public ShellClient {
  public:
   explicit AuraDemo(ScopedMessagePipeHandle shell_handle)
-      : shell_(shell_handle.Pass()) {
-    shell_.SetPeer(this);
-
+      : shell_(shell_handle.Pass(), this) {
     screen_.reset(DemoScreen::Create());
     gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, screen_.get());