Revert of Refactor serving_dirs.

tools/telemetry/telemetry/page/page_set_unittest.py

 # Copyright 2012 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
 import tempfile
 import unittest
 
 from telemetry.page import page
 from telemetry.page import page_set
 from telemetry.util import cloud_storage
 
 
 class TestPageSet(unittest.TestCase):
 
   def testServingDirs(self):
     directory_path = tempfile.mkdtemp()
     try:
       ps = page_set.PageSet(serving_dirs=['a/b'], file_path=directory_path)
       ps.AddUserStory(page.Page('file://c/test.html', ps, ps.base_dir))
       ps.AddUserStory(page.Page('file://c/test.js', ps, ps.base_dir))
       ps.AddUserStory(page.Page('file://d/e/../test.html', ps, ps.base_dir))
     finally:
       os.rmdir(directory_path)
 
     real_directory_path = os.path.realpath(directory_path)
-    expected_serving_dirs = set([os.path.join(real_directory_path, 'a', 'b'),
-                                 os.path.join(real_directory_path, 'c'),
-                                 os.path.join(real_directory_path, 'd')])
+    expected_serving_dirs = set([os.path.join(real_directory_path, 'a', 'b')])
     self.assertEquals(ps.serving_dirs, expected_serving_dirs)
     self.assertEquals(ps[0].serving_dir, os.path.join(real_directory_path, 'c'))
     self.assertEquals(ps[2].serving_dir, os.path.join(real_directory_path, 'd'))
 
   def testAbsoluteServingDir(self):
     directory_path = tempfile.mkdtemp()
     try:
       absolute_dir = os.path.join(directory_path, 'a', 'b')
       ps = page_set.PageSet(file_path=directory_path,
                             serving_dirs=['', directory_path, absolute_dir])
@@ skipping 17 matching lines @@
     page_set_b = page_set.PageSet()
     for p in pages:
       p.TransferToPageSet(page_set_b)
     page_set_b.AddUserStory(page.Page('http://baz.com', page_set_b))
     self.assertEqual(0, len(page_set_a.pages))
     self.assertEqual(
         set(['http://foo.com', 'http://bar.com', 'http://baz.com']),
         set(p.url for p in page_set_b.pages))
     for p in page_set_b.pages:
       self.assertIs(page_set_b, p.page_set)