Fix navigation to unittest files

tools/telemetry/telemetry/unittest/navigate_test.py

Index: tools/telemetry/telemetry/unittest/navigate_test.py
diff --git a/tools/telemetry/telemetry/unittest/navigate_test.py b/tools/telemetry/telemetry/unittest/navigate_test.py
new file mode 100644
index 0000000000000000000000000000000000000000..2f8dcfd7c47c219606a8c6253f36449cf9da07bd
--- /dev/null
+++ b/tools/telemetry/telemetry/unittest/navigate_test.py
@@ -0,0 +1,20 @@
+# 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 os
+
+from telemetry.core import util
+
+def NavigateToTestFile(tab, filename, script_to_evaluate_on_commit=None):
+  """Navigates |tab| to |filename| in the unittest data directory.
+
+  Also sets up http server to point to the unittest data directory.
+  """
+  tab.browser.SetHTTPServerDirectories(util.GetUnittestDataDir())
+  path = os.path.join(util.GetUnittestDataDir(), filename)
+  tab.Navigate(tab.browser.http_server.UrlOf(path),
+               script_to_evaluate_on_commit)
+  tab.WaitForDocumentReadyStateToBeComplete()
+  return path
+