Add a Mojo example apptest that runs in mojo_shell.

mojo/examples/apptest/example_service_application.h

Index: mojo/examples/apptest/example_service_application.h
diff --git a/mojo/examples/apptest/example_service_application.h b/mojo/examples/apptest/example_service_application.h
new file mode 100644
index 0000000000000000000000000000000000000000..a5ca0d4012c9d922f739a5e8079bcb8ffc03b3c9
--- /dev/null
+++ b/mojo/examples/apptest/example_service_application.h
@@ -0,0 +1,37 @@
+// Copyright 2014 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_TEST_EXAMPLE_SERVICE_APPLICATION_H_
+#define MOJO_EXAMPLES_TEST_EXAMPLE_SERVICE_APPLICATION_H_
+
+#include "mojo/public/cpp/application/application_delegate.h"
+#include "mojo/public/cpp/application/interface_factory.h"
+#include "mojo/public/cpp/system/macros.h"
+
+namespace mojo {
+
+class ApplicationConnection;
+class ExampleService;
+
+class ExampleServiceApplication : public ApplicationDelegate,
+                                  public InterfaceFactory<ExampleService> {
+ public:
+  ExampleServiceApplication();
+  virtual ~ExampleServiceApplication();
+
+  // ApplicationDelegate implementation.

[Ben Goodger (Google), 2014/08/07 15:53:09]

I have a habit of pushing interface implementation methods to private unless you
expect someone to need to call them via a ptr to ExampleServiceApplication. That
keeps the public API focused.

[msw, 2014/08/07 18:31:16]

Done.

+  virtual bool ConfigureIncomingConnection(ApplicationConnection* connection)
+      MOJO_OVERRIDE;
+
+  // InterfaceFactory<ExampleService> implementation.
+  virtual void Create(ApplicationConnection* connection,

[Ben Goodger (Google), 2014/08/07 15:53:09]

You could just add an InterfaceFactoryImpl member instead rather than
implementing this method.

[msw, 2014/08/07 18:31:16]

Done.

+                      InterfaceRequest<ExampleService> request) MOJO_OVERRIDE;
+
+ private:
+  MOJO_DISALLOW_COPY_AND_ASSIGN(ExampleServiceApplication);
+};
+
+}  // namespace mojo
+
+#endif  // MOJO_EXAMPLES_TEST_EXAMPLE_SERVICE_APPLICATION_H_