Extension profile generator + benchmark for startup with profile.

tools/perf/page_sets/blank_page_with_extension_profile.py

Index: tools/perf/page_sets/blank_page_with_extension_profile.py
diff --git a/tools/perf/page_sets/blank_page_with_extension_profile.py b/tools/perf/page_sets/blank_page_with_extension_profile.py
new file mode 100644
index 0000000000000000000000000000000000000000..b4c5b594e760b45e31f6880b494027dc7ab0cda0
--- /dev/null
+++ b/tools/perf/page_sets/blank_page_with_extension_profile.py
@@ -0,0 +1,26 @@
+# 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 page_sets import extension_profile_shared_state
+from telemetry.page import page as page_module
+from telemetry import story
+
+
+class BlankPageWithExtensionProfile(page_module.Page):
+  """A single blank page loaded with a profile with many extensions."""
+
+  def __init__(self, url, page_set):
+    super(BlankPageWithExtensionProfile, self).__init__(
+        url=url, page_set=page_set,
+        shared_page_state_class=extension_profile_shared_state.
+                                ExtensionProfileSharedState)
+
+
+class BlankPageSetWithExtensionProfile(story.StorySet):
+  """PageSet tied to BlankPageWithExtensionProfile."""
+
+  def __init__(self):
+    super(BlankPageSetWithExtensionProfile, self).__init__()
+    self.AddStory(BlankPageWithExtensionProfile(
+        'file://blank_page/blank_page.html', self))