[Telemetry] Add an example for adding an end to end Telemetry benchmark

tools/telemetry/examples/benchmarks/simple_story_set.py

+# Copyright 2015 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.
+
+from telemetry import story
+from telemetry import page
+
+
+class ExamplePage(page.Page):
+
+  def __init__(self, page_set):
+    super(ExamplePage, self).__init__(
+        url='https://google.com/search?q=lemon',
+        page_set=page_set)
+
+  def RunPageInteractions(self, action_runner):
+    action_runner.Wait(0.5)

[aiolos (Not reviewing), 2015/11/06 18:15:21]

It might be worthwhile to add a comment about CreateInteraction as well. Since
the actions here aren't an example of a "normal" page interaction, we should
probably point out explicitly what we're wanting people to take away from this.
(ie, what actions will be in interaction records)

[nednguyen, 2015/11/06 18:36:15]

Done.

+    with action_runner.CreateInteraction('Wait'):
+      action_runner.Wait(0.3)
+    action_runner.Wait(0.1)
+    with action_runner.CreateInteraction('Scroll'):
+      # To see all the web APIs that action_runner supports, see:

[aiolos (Not reviewing), 2015/11/06 18:15:21]

This seems like an odd place for this comment. Can it be either at the beginning
or end of this function instead?

[nednguyen, 2015/11/06 18:36:15]

Done.

+      # telemetry.page.action_runner module.
+      action_runner.ScrollPage()
+    with action_runner.CreateInteraction('Wait-two'):
+      action_runner.Wait(1)
+
+
+class SimpleStorySet(story.StorySet):
+  def __init__(self):
+    super(SimpleStorySet, self).__init__(
+        archive_data_file='data/simple_story_set.json',
+        cloud_storage_bucket=story.PARTNER_BUCKET)
+    self.AddStory(ExamplePage(self))