Fix directory layout for tools/memory_inspector tests.

tools/memory_inspector/run_tests

+#!/usr/bin/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.
+
+import logging
+import os
+import sys
+import unittest
+
+
+if __name__ == '__main__':
+  cur_dir = os.path.abspath(os.path.dirname(__file__))
+  chromium_dir = os.path.abspath(os.path.join(cur_dir, os.pardir, os.pardir))
+
+  sys.path += [
+      cur_dir,
+
+      # Include all dependencies.
+      os.path.join(chromium_dir, 'build', 'android'),  # For pylib.
+  ]
+
+  logging.basicConfig(
+      level=logging.DEBUG if '-v' in sys.argv else logging.WARNING,
+      format='%(levelname)5s %(filename)15s(%(lineno)3d): %(message)s')
+
+  suite = unittest.TestSuite()
+  loader = unittest.TestLoader()
+  suite.addTests(loader.discover(start_dir=cur_dir, pattern='*_unittest.py'))
+
+  res = unittest.TextTestRunner(verbosity=2).run(suite)
+  if res.wasSuccessful():
+    sys.exit(0)
+  else:
+    sys.exit(1)