Mojo: abstract interface implementation from generated Stub classes

mojo/examples/hello_world_service/hello_world_service_impl.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_EXAMPLES_HELLO_WORLD_SERVICE_HELLO_WORLD_SERVICE_IMPL_H_
 #define MOJO_EXAMPLES_HELLO_WORLD_SERVICE_HELLO_WORLD_SERVICE_IMPL_H_
 
 #include "mojo/public/bindings/lib/remote_ptr.h"
 #include "mojom/hello_world_service.h"
 
 namespace mojo {
 namespace examples {
 
-class HelloWorldServiceImpl : public HelloWorldServiceStub {
+class HelloWorldServiceImpl : public HelloWorldService {
  public:
   explicit HelloWorldServiceImpl(ScopedMessagePipeHandle pipe);
   virtual ~HelloWorldServiceImpl();
   virtual void Greeting(const String& greeting) MOJO_OVERRIDE;
 
  private:
   RemotePtr<HelloWorldClient> client_;
 };
 
 }  // namespace examples
 }  // namespace mojo
 
 #endif  // MOJO_EXAMPLES_HELLO_WORLD_SERVICE_HELLO_WORLD_SERVICE_IMPL_H_