Move the apptest runner and parts of mopy to the public SDK.

mojo/tools/test_runner.py

 #!/usr/bin/env python
 # 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.
 
 """A "smart" test runner for gtest unit tests (that caches successes)."""
 
 import argparse
 import ast
 import logging
 import os
 import platform
 import subprocess
 import sys
 
 _logging = logging.getLogger()
 
+import add_sdk_tools_to_path
 import mopy.gtest
 from mopy.paths import Paths
-from mopy.transitive_hash import file_hash, transitive_hash
+
+from mopy_internal.transitive_hash import file_hash, transitive_hash
 
 paths = Paths()
 
 def main():
   logging.basicConfig()
   # Uncomment to debug:
   # _logging.setLevel(logging.DEBUG)
 
   parser = argparse.ArgumentParser(
       description="A 'smart' test runner for gtest unit tests (that caches "
@@ skipping 109 matching lines @@
       print "  Failed to start test"
       return 1
   print "All tests succeeded"
   if successes_cache_file:
     successes_cache_file.close()
 
   return 0
 
 if __name__ == '__main__':
   sys.exit(main())