Change profile_creator to not subclass page_test

tools/perf/profile_creators/small_profile_creator.py

 # Copyright 2013 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.page import profile_creator
 
+import logging
 import page_sets
 
+from telemetry import benchmark
+from telemetry.page import page_test
+from telemetry.page import test_expectations
+from telemetry.results import results_options
+from telemetry.user_story import user_story_runner
+
 
 class SmallProfileCreator(profile_creator.ProfileCreator):
   """
   Runs a browser through a series of operations to fill in a small test profile.
+
+  This consists of performing a single navigation to each of the top 25 pages.
   """
+  class PageTest(page_test.PageTest):
+    def __init__(self):
+      super(SmallProfileCreator.PageTest, self).__init__()
+      self._page_set = page_sets.Typical25PageSet()
+
+      # Open all links in the same tab save for the last _NUM_TABS links which
+      # are each opened in a new tab.
+      self._NUM_TABS = 5
+
+    def TabForPage(self, page, browser):
+      """Superclass override."""
+      idx = page.page_set.pages.index(page)
+      # The last _NUM_TABS pages open a new tab.
+      if idx <= (len(page.page_set.pages) - self._NUM_TABS):
+        return browser.tabs[0]
+      else:
+        return browser.tabs.New()
+
+    def ValidateAndMeasurePage(self, page, tab, results):
+      """Superclass override."""
+      tab.WaitForDocumentReadyStateToBeComplete()
 
   def __init__(self):
     super(SmallProfileCreator, self).__init__()
-    self._page_set = page_sets.Typical25PageSet()
+    self._page_test = SmallProfileCreator.PageTest()
 
-    # Open all links in the same tab save for the last _NUM_TABS links which
-    # are each opened in a new tab.
-    self._NUM_TABS = 5
+  def Run(self, options):
+    expectations = test_expectations.TestExpectations()
+    results = results_options.CreateResults(
+        benchmark.BenchmarkMetadata(profile_creator.__class__.__name__),
+        options)
+    user_story_runner.Run(self._page_test, self._page_test._page_set,
+        expectations, options, results)
 
-  def TabForPage(self, page, browser):
-    idx = page.page_set.pages.index(page)
-    # The last _NUM_TABS pages open a new tab.
-    if idx <= (len(page.page_set.pages) - self._NUM_TABS):
-      return browser.tabs[0]
-    else:
-      return browser.tabs.New()
-
-  def ValidateAndMeasurePage(self, _, tab, results):
-    tab.WaitForDocumentReadyStateToBeComplete()
+    if results.failures:
+      logging.warning('Some pages failed to load.')
+      logging.warning('Failed pages:\n%s',
+                      '\n'.join(map(str, results.pages_that_failed)))
+      raise Exception('SmallProfileCreator failed.')