Extension profile generator + benchmark for startup with profile.

tools/perf/page_sets/extension_profile_shared_state.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.
+
+import shutil
+
+from profile_creators import profile_generator
+from profile_creators import extension_profile_extender
+from telemetry.page import shared_page_state
+
+
+class ExtensionProfileSharedState(shared_page_state.SharedPageState):
+  def __init__(self, test, finder_options, story_set):
+    super(ExtensionProfileSharedState, self).__init__(
+        test, finder_options, story_set)
+    generator = profile_generator.ProfileGenerator(
+        extension_profile_extender.ExtensionProfileExtender,
+        "extension_profile")
+    self._out_dir = generator.Run(finder_options)
+    if self._out_dir:
+      finder_options.browser_options.profile_dir = self._out_dir
+    else:
+      finder_options.browser_options.dont_override_profile = True
+
+  def TearDownState(self):
+    """ Clean up generated profile directory. """
+    super(ExtensionProfileSharedState, self).TearDownState()
+    if self._out_dir:
+      shutil.rmtree(self._out_dir)