Add Animometer "Focus" test to tough_filters_cases, and update.

tools/perf/page_sets/data/tough_filters_cases.json

Index: tools/perf/page_sets/data/tough_filters_cases.json
diff --git a/tools/perf/page_sets/data/tough_filters_cases.json b/tools/perf/page_sets/data/tough_filters_cases.json
index b27ebe05a810938d3cf4372835f8b9281ef5a1b9..749676c21dd4ae0709a926887dcccde541e22e9d 100644
--- a/tools/perf/page_sets/data/tough_filters_cases.json
+++ b/tools/perf/page_sets/data/tough_filters_cases.json
@@ -1,10 +1,14 @@
 {
-    "description": "Describes the Web Page Replay archives for a page set. Don't edit by hand! Use record_wpr for updating.", 
+    "description": "Describes the Web Page Replay archives for a story set. Don't edit by hand! Use record_wpr for updating.", 
     "archives": {
+        "tough_filters_cases_002.wpr": [
+            "http://web.archive.org/web/20150502135732/http://ie.microsoft.com/testdrive/Performance/Pirates/Default.html", 
+            "http://static.bobdo.net/Analog_Clock.svg", 
+            "http://rawgit.com/WebKit/webkit/master/PerformanceTests/Animometer/developer.html?test-interval=20&display=minimal&controller=fixed&frame-rate=50&kalman-process-error=1&kalman-measurement-error=4&time-measurement=performance&suite-name=Animometer&test-name=Focus&complexity=100", 
+            "http://letmespellitoutforyou.com/samples/svg/filter_terrain.svg"
+        ], 
         "tough_filters_cases_001.wpr": [
-            "http://letmespellitoutforyou.com/samples/svg/filter_terrain.svg", 
-            "http://ie.microsoft.com/testdrive/Performance/Pirates/", 
-            "http://static.bobdo.net/Analog_Clock.svg"
+            "http://ie.microsoft.com/testdrive/Performance/Pirates/"
         ]
     }
 }