Move make_javascript_deterministic to UserStory.

tools/telemetry/telemetry/user_story/__init__.py

Index: tools/telemetry/telemetry/user_story/__init__.py
diff --git a/tools/telemetry/telemetry/user_story/__init__.py b/tools/telemetry/telemetry/user_story/__init__.py
index 68d9b565ffb243aa55f99b2dd3fd3d26c737d3bb..4b03f4326b574b9cf902cb8f3fc75cadb98ba0b4 100644
--- a/tools/telemetry/telemetry/user_story/__init__.py
+++ b/tools/telemetry/telemetry/user_story/__init__.py
@@ -27,7 +27,17 @@ class UserStory(object):
   """
 
   def __init__(self, shared_user_story_state_class, name='', labels=None,
-               is_local=False):
+               is_local=False, make_javascript_deterministic=True):
+    """
+    Args:
+      make_javascript_deterministic: Whether JavaScript performed on
+          the page is made deterministic across multiple runs. This
+          requires that the web content is served via Web Page Replay
+          to take effect. Does not affect user story containing no web
+          contents or where there is the HTTP response mime type is
+          not text/html. See also: _InjectScripts method in
+          third_party/webpagereplay/httpclient.py.
+    """
     assert issubclass(shared_user_story_state_class,
                       shared_user_story_state.SharedUserStoryState)
     self._shared_user_story_state_class = shared_user_story_state_class
@@ -43,6 +53,7 @@ class UserStory(object):
       assert isinstance(labels, set)
     self._labels = labels
     self._is_local = is_local
+    self._make_javascript_deterministic = make_javascript_deterministic
 
   @property
   def labels(self):
@@ -86,3 +97,7 @@ class UserStory(object):
   def is_local(self):
     """Returns True iff this user story does not require network."""
     return self._is_local
+
+  @property
+  def make_javascript_deterministic(self):
+    return self._make_javascript_deterministic