Add IE PirateMark to tough_filters_cases page set.

tools/perf/page_sets/tough_filters_cases.py

Index: tools/perf/page_sets/tough_filters_cases.py
diff --git a/tools/perf/page_sets/tough_filters_cases.py b/tools/perf/page_sets/tough_filters_cases.py
index 457debda68d18ffe182f8f4692efc1165b4923bd..d3f6fe8220106a5b9353ad7b35bb3d8088444839 100644
--- a/tools/perf/page_sets/tough_filters_cases.py
+++ b/tools/perf/page_sets/tough_filters_cases.py
@@ -11,6 +11,13 @@ class ToughFiltersCasesPage(page_module.Page):
     action_runner.Wait(10)
 
 
+class PirateMarkPage(page_module.Page):
+
+  def RunSmoothness(self, action_runner):
+    action_runner.EvaluateJavaScript(
+        'document.getElementById("benchmarkButtonText").click()')
+    action_runner.Wait(10)
+
 class ToughFiltersCasesPageSet(page_set_module.PageSet):
 
   """
@@ -29,3 +36,6 @@ class ToughFiltersCasesPageSet(page_set_module.PageSet):
 
     for url in urls_list:
       self.AddPage(ToughFiltersCasesPage(url, self))
+
+    self.AddPage(PirateMarkPage(
+        'http://ie.microsoft.com/testdrive/Performance/Pirates/', self))