Mojo: abstract interface implementation from generated Stub classes

mojo/services/native_viewport/native_viewport_service.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_SERVICES_NATIVE_VIEWPORT_SERVICE_H_
 #define MOJO_SERVICES_NATIVE_VIEWPORT_SERVICE_H_
 
 #include "base/memory/scoped_vector.h"
 #include "mojo/public/bindings/lib/remote_ptr.h"
 #include "mojo/services/native_viewport/native_viewport_export.h"
 #include "mojom/shell.h"
 
 namespace mojo {
 
 namespace shell {
 class Context;
 }
 
 namespace services {
 
-class NativeViewportService : public ShellClientStub {
+class NativeViewportService : public ShellClient {
   public:
    NativeViewportService(ScopedMessagePipeHandle shell_handle);
    virtual ~NativeViewportService();
    virtual void AcceptConnection(ScopedMessagePipeHandle client_handle)
       MOJO_OVERRIDE;
 
    // For locally loaded services.
    void set_context(shell::Context* context) { context_ = context; }
 
   private:
    class NativeViewportImpl;
    RemotePtr<Shell> shell_;
    ScopedVector<NativeViewportImpl> viewports_;
    shell::Context* context_;
 };
 
 }  // namespace services
 }  // namespace mojo
 
 #if defined(OS_ANDROID)
 MOJO_NATIVE_VIEWPORT_EXPORT mojo::services::NativeViewportService*
     CreateNativeViewportService(mojo::ScopedMessagePipeHandle shell_handle);
 #endif
 
 #endif  // MOJO_SERVICES_NATIVE_VIEWPORT_SERVICE_H_