Move to localhost-based URL for Pica benchmark

Will update data to match (including both new and old URLs) before landing.

R=tonyg@chromium.org

Review URL: https://codereview.chromium.org/23450024

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@221743 0039d316-1c4b-4281-b951-d872f2087c98

tools/perf/page_sets/pica.json

@@ -2,7 +2,7 @@
   "description": "Pica demo app for the Polymer UI toolkit",
   "archive_data_file": "../data/pica.json",
   "pages": [
-    { "url": "http://www.polymer-project.org/polymer-all/projects/pica/index.html",
+    { "url": "http://localhost/polymer/projects/pica/",
       "script_to_evaluate_on_commit":
           "document.addEventListener('WebComponentsReady', function(){var unused = document.body.offsetHeight; window.__pica_load_time = performance.now(); setTimeout(function(){window.__web_components_ready=true}, 1000)})",
       "navigate_steps" : [