[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):
+    # To see all the web APIs that action_runner supports, see:
+    # telemetry.page.action_runner module.
+
+    action_runner.Wait(0.5)
+    # Create interaction record will create a region of interest in tracing that
+    # cover the wait, tap, and scroll actions nested in the block below.
+    with action_runner.CreateInteraction('Scroll-And-Tap'):
+      action_runner.Wait(0.3)
+      action_runner.ScrollPage()
+      action_runner.TapElement(text='Next')
+    action_runner.Wait(1)
+    with action_runner.CreateInteraction('Scroll'):
+      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))