Updating histograms to allow for experiments & log origin-based histograms.

chrome/browser/prerender/prerender_manager_unittest.cc

Index: chrome/browser/prerender/prerender_manager_unittest.cc
===================================================================
--- chrome/browser/prerender/prerender_manager_unittest.cc	(revision 91002)
+++ chrome/browser/prerender/prerender_manager_unittest.cc	(working copy)
@@ -25,7 +25,8 @@
                          const GURL& url,
                          FinalStatus expected_final_status)
       : PrerenderContents(prerender_manager, prerender_tracker, NULL, url,
-                          GURL(), ORIGIN_LINK_REL_PRERENDER),
+                          GURL(), ORIGIN_LINK_REL_PRERENDER,
+                          PrerenderManager::kNoExperiment),
         has_started_(false),
         expected_final_status_(expected_final_status) {
   }
@@ -155,7 +156,8 @@
   virtual PrerenderContents* CreatePrerenderContents(
       const GURL& url,
       const GURL& referrer,
-      Origin origin) OVERRIDE {
+      Origin origin,
+      char experiment_id) OVERRIDE {
     DCHECK(next_prerender_contents_.get());
     return next_prerender_contents_.release();
   }