Telemetry: Replace actual groupcloned page with test page.

tools/perf/page_sets/key_mobile_sites.json

Index: tools/perf/page_sets/key_mobile_sites.json
diff --git a/tools/perf/page_sets/key_mobile_sites.json b/tools/perf/page_sets/key_mobile_sites.json
index dec87c8d345a32bf8d940b165725c0fc7c72a28d..f8b0441f81257e890eacf36ddf27cf53b0614c35 100644
--- a/tools/perf/page_sets/key_mobile_sites.json
+++ b/tools/perf/page_sets/key_mobile_sites.json
@@ -212,6 +212,7 @@
       "why": "Problematic use of fixed position elements"
     },
     {
+      "disabled": "Page behaves non-deterministically, replaced with test version for now",

[tonyg, 2013/09/05 15:32:13]

Should we just remove this instead of disabling it?

Also, perhaps if you could pinpoint the source of the non-determinism, we could
improve web page replay to be able to make that deterministic.

[Dominik Grewe, 2013/09/05 15:38:11]

I tried to figure out what exactly is going on but the page has quite a lot of
obscure JS which doesn't make it easy to understand what's going on. We're
trying to get a deterministic version of the page from the developers, just like
the newly added test page but more similar to the actual page.

I disabled rather than removed it for now because we still don't know what we're
going to do with this page. Should I leave it like that or should I remove it?

       "url": "http://groupcloned.com",
       "why": "crbug.com/172906",
       "navigate_steps": [
@@ -226,6 +227,19 @@
       }
     },
     {
+      "url": "http://groupcloned.com/test/list-images-variable/index.html",
+      "why": "crbug.com/172906",
+      "navigate_steps": [
+        { "action": "navigate" },
+        { "action": "wait", "javascript": "document.getElementById('element-5') !== null" }
+      ],
+      "smoothness": {
+        "action": "scroll",
+        "scroll_requires_touch": true,
+        "remaining_scroll_distance_function": "function() { return Math.max(0, 1250 + document.getElementById('element-5').getBoundingClientRect().top); }"
+      }
+    },
+    {
       "disabled": "Doesn't scroll; crbug.com/249736",
       "url": "http://forecast.io",
       "why": "crbug.com/231413"