Make it possible to run a test in sky_shell

sky/shell/testing/test_runner.h

Index: sky/shell/testing/test_runner.h
diff --git a/sky/shell/testing/test_runner.h b/sky/shell/testing/test_runner.h
new file mode 100644
index 0000000000000000000000000000000000000000..eb27c13d6ebe5ff5da62c8f78c1e9043d0622fd5
--- /dev/null
+++ b/sky/shell/testing/test_runner.h
@@ -0,0 +1,62 @@
+// Copyright 2015 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 SKY_SHELL_TESTING_TEST_RUNNER_H_
+#define SKY_SHELL_TESTING_TEST_RUNNER_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "mojo/common/weak_binding_set.h"
+#include "mojo/public/cpp/application/interface_factory_impl.h"
+#include "sky/services/testing/test_harness.mojom.h"
+#include "sky/services/viewport/viewport_observer.mojom.h"
+
+namespace sky {
+namespace shell {
+class ShellView;
+
+class TestRunner : public mojo::InterfaceFactory<TestHarness>,
+                   public TestHarness {
+ public:
+  static TestRunner& Shared();
+
+  void set_package_root(const std::string& package_root) {
+    package_root_ = package_root;
+  }
+
+  void Start(const std::string& single_test_url);
+
+ private:
+  // mojo::InterfaceFactory<TestHarness> implementation:
+  void Create(mojo::ApplicationConnection* app,
+              mojo::InterfaceRequest<TestHarness> request) override;
+
+  // TestHarness implementation:
+  void OnTestComplete(const mojo::String& test_result,
+                      const mojo::Array<uint8_t> pixels) override;
+  void DispatchInputEvent(mojo::EventPtr event) override;
+
+  TestRunner();
+  ~TestRunner() override;
+  void ScheduleRun();
+  void Run();
+
+  std::string package_root_;
+  scoped_ptr<ShellView> shell_view_;
+  ViewportObserverPtr viewport_observer_;
+
+  std::string single_test_url_;
+  mojo::WeakBindingSet<TestHarness> bindings_;
+
+  base::WeakPtrFactory<TestRunner> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestRunner);
+};
+
+}  // namespace shell
+}  // namespace sky
+
+#endif  // SKY_SHELL_TESTING_TEST_RUNNER_H_