[Telemetry] Update all WPR json files to the new format.

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 749676c21dd4ae0709a926887dcccde541e22e9d..ccf3f6e11428b32d8a1ac017edbc540306be737b 100644
--- a/tools/perf/page_sets/data/tough_filters_cases.json
+++ b/tools/perf/page_sets/data/tough_filters_cases.json
@@ -1,14 +1,21 @@
 {
-    "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://ie.microsoft.com/testdrive/Performance/Pirates/"
-        ]
-    }
+        "http://ie.microsoft.com/testdrive/Performance/Pirates/": {
+            "DEFAULT": "tough_filters_cases_001.wpr"
+        },
+        "http://letmespellitoutforyou.com/samples/svg/filter_terrain.svg": {
+            "DEFAULT": "tough_filters_cases_002.wpr"
+        },
+        "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": {
+            "DEFAULT": "tough_filters_cases_002.wpr"
+        },
+        "http://static.bobdo.net/Analog_Clock.svg": {
+            "DEFAULT": "tough_filters_cases_002.wpr"
+        },
+        "http://web.archive.org/web/20150502135732/http://ie.microsoft.com/testdrive/Performance/Pirates/Default.html": {
+            "DEFAULT": "tough_filters_cases_002.wpr"
+        }
+    },
+    "description": "Describes the Web Page Replay archives for a story set. Don't edit by hand! Use record_wpr for updating.",
+    "platform_specific": true
 }