mojo: add some end-to-end shell tests and a new test sample app

mojo/services/test_service/test_request_tracker_application.h

+// 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_SERVICES_TEST_SERVICE_TEST_REQUEST_TRACKER_APPLICATION_H_
+#define MOJO_SERVICES_TEST_SERVICE_TEST_REQUEST_TRACKER_APPLICATION_H_
+
+#include "mojo/public/cpp/application/application_delegate.h"
+#include "mojo/public/cpp/system/macros.h"
+#include "mojo/services/test_service/test_request_tracker_impl.h"
+
+namespace mojo {
+namespace test {
+
+// Embeds TestRequestTracker mojo services into an application.
+class TestRequestTrackerApplication : public ApplicationDelegate {
+ public:
+  TestRequestTrackerApplication();
+  virtual ~TestRequestTrackerApplication();
+
+  virtual bool ConfigureIncomingConnection(ApplicationConnection* connection)
+      MOJO_OVERRIDE;
+
+ private:
+  TrackingContext context_;
+  MOJO_DISALLOW_COPY_AND_ASSIGN(TestRequestTrackerApplication);
+};
+
+}  // namespace test
+}  // namespace mojo
+
+#endif  // MOJO_SERVICES_TEST_SERVICE_TEST_REQUEST_TRACKER_APPLICATION_H_