Add mobile version of v8.infinite_scroll benchmark.

tools/perf/page_sets/mobile_facebook_page.py

Index: tools/perf/page_sets/mobile_facebook_page.py
diff --git a/tools/perf/page_sets/mobile_facebook_page.py b/tools/perf/page_sets/mobile_facebook_page.py
new file mode 100644
index 0000000000000000000000000000000000000000..edd93a04a138b290cfa677b38c26d03e27fb9172
--- /dev/null
+++ b/tools/perf/page_sets/mobile_facebook_page.py
@@ -0,0 +1,18 @@
+# Copyright 2016 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.login_helpers import mobile_facebook_login
+
+from telemetry.page import page as page_module
+
+class MobileFacebookPage(page_module.Page):
+  def __init__(self, url, page_set, shared_page_state_class, name='facebook'):
+    super(MobileFacebookPage, self).__init__(
+        url=url, page_set=page_set, name=name,
+        credentials_path='data/credentials.json',
+        shared_page_state_class=shared_page_state_class)
+  def RunNavigateSteps(self, action_runner):
+    mobile_facebook_login.LoginAccount(action_runner, 'facebook3',
+                                       self.credentials_path)
+    super(MobileFacebookPage, self).RunNavigateSteps(action_runner)