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

mojo/services/test_service/test_time_service_impl.cc

+// 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.
+
+#include "base/time/time.h"
+#include "mojo/public/cpp/application/application_connection.h"
+#include "mojo/services/test_service/test_request_tracker.mojom.h"
+#include "mojo/services/test_service/test_request_tracker_client_impl.h"
+#include "mojo/services/test_service/test_time_service_impl.h"
+
+namespace mojo {
+namespace test {
+
+TestTimeServiceImpl::TestTimeServiceImpl(ApplicationConnection* application)
+    : application_(application) {
+}
+
+TestTimeServiceImpl::~TestTimeServiceImpl() {
+}
+
+void TestTimeServiceImpl::StartTrackingRequests(
+    const mojo::Callback<void()>& callback) {
+  TestRequestTrackerPtr tracker;
+  application_->ConnectToService(
+      "mojo:mojo_test_request_tracker_app", &tracker);
+  tracking_.reset(new TestRequestTrackerClientImpl(
+      tracker.Pass(), Name_, callback));
+}
+
+void TestTimeServiceImpl::GetPartyTime(
+    const mojo::Callback<void(int64_t)>& callback) {
+  if (tracking_)
+    tracking_->RecordNewRequest();
+  base::Time frozen_time(base::Time::UnixEpoch()
+      + base::TimeDelta::FromDays(10957)
+      + base::TimeDelta::FromHours(7)
+      + base::TimeDelta::FromMinutes(59));
+  int64 time(frozen_time.ToInternalValue());
+  callback.Run(time);
+}
+
+}  // namespace test
+}  // namespace mojo