[Telemetry] Introduce shared_user_story_state for real.

tools/telemetry/telemetry/page/shared_page_state_unittest.py

Index: tools/telemetry/telemetry/page/shared_page_state_unittest.py
diff --git a/tools/telemetry/telemetry/page/shared_page_state_unittest.py b/tools/telemetry/telemetry/page/shared_page_state_unittest.py
index 68a3e419270b58a64c4444182f01e18eed4f8604..7474ec90182281ecf08c577583bc5d9a98569903 100644
--- a/tools/telemetry/telemetry/page/shared_page_state_unittest.py
+++ b/tools/telemetry/telemetry/page/shared_page_state_unittest.py
@@ -7,17 +7,17 @@ import unittest
 
 from telemetry.core import wpr_modes
 from telemetry.page import shared_page_state
-from telemetry.page import page_runner
 from telemetry.page import page_set
 from telemetry.page import page_test
 from telemetry.unittest_util import options_for_unittests
+from telemetry.user_story import user_story_runner
 
 
 def SetUpPageRunnerArguments(options):
   parser = options.CreateParser()
-  page_runner.AddCommandLineArgs(parser)
+  user_story_runner.AddCommandLineArgs(parser)
   options.MergeDefaultValues(parser.get_default_values())
-  page_runner.ProcessCommandLineArgs(parser, options)
+  user_story_runner.ProcessCommandLineArgs(parser, options)
 
 
 class DummyTest(page_test.PageTest):