Initial mojo spy skeleton based on tvcm

mojo/spy/run_ui_tests

Index: mojo/spy/run_ui_tests
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+#!/usr/bin/env python
+# Copyright (c) 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.
+"""Starts the mojo spy dev server.
+
+During normal usage of mojo spy, the spy files are compiled into standalone
+HTML+JS+CSS snippets that are then embedded in the mojo shell.
+
+The dev server allows edit-reload style development of the spy UI in isolation
+of the c++ bits. To use, start the dev server, navigate to the URL the script
+prints, and run any of the tests listed. Reloading in the browser loads the
+latest content from disk, enabling a traditional web development workflow.
+"""
+import sys
+
+import ui
+from tvcm import test_runner
+
+if __name__ == '__main__':
+  runner = test_runner.TestRunner()
+  runner.AddModule(ui)
+  sys.exit(runner.Main())