Revert "Revert 215542 "[Telemetry] Add HTML output and make it the default.""

tools/telemetry/telemetry/test.py

Index: tools/telemetry/telemetry/test.py
diff --git a/tools/telemetry/telemetry/test.py b/tools/telemetry/telemetry/test.py
index 1edf35b4000c5fc6ecda1722b24a4ea4fc519e9d..df74a2a5678d4b495980fe5ce27eb50e2bd3b507 100644
--- a/tools/telemetry/telemetry/test.py
+++ b/tools/telemetry/telemetry/test.py
@@ -2,23 +2,15 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 import os
-import sys
 
 from telemetry.core import repeat_options
+from telemetry.core import util
 from telemetry.page import page_runner
 from telemetry.page import page_set
 from telemetry.page import page_test
 from telemetry.page import test_expectations
 
 
-def GetBaseDir():
-  main_module = sys.modules['__main__']
-  if hasattr(main_module, '__file__'):
-    return os.path.dirname(os.path.abspath(main_module.__file__))
-  else:
-    return os.getcwd()
-
-
 class Test(object):
   """Base class for a Telemetry test or benchmark.
 
@@ -60,7 +52,8 @@ class Test(object):
     page_set attribute. Override to generate a custom page set.
     """
     assert hasattr(self, 'page_set'), 'This test has no "page_set" attribute.'
-    return page_set.PageSet.FromFile(os.path.join(GetBaseDir(), self.page_set))
+    return page_set.PageSet.FromFile(
+        os.path.join(util.GetBaseDir(), self.page_set))
 
   def CreateExpectations(self, ps):  # pylint: disable=W0613
     """Get the expectations this test will run with.