Added prerendering to omnibox.

chrome/browser/prerender/prerender_final_status.cc

Index: chrome/browser/prerender/prerender_final_status.cc
diff --git a/chrome/browser/prerender/prerender_final_status.cc b/chrome/browser/prerender/prerender_final_status.cc
index 8d71e41a6768a047dce88cae8ebdfbec53eda4fd..96f408ebf2a748d7aad16f743ee4539b95bcd439 100644
--- a/chrome/browser/prerender/prerender_final_status.cc
+++ b/chrome/browser/prerender/prerender_final_status.cc
@@ -51,7 +51,7 @@ COMPILE_ASSERT(arraysize(kFinalStatusNames) == FINAL_STATUS_MAX + 1,
 
 }
 
-void RecordFinalStatus(FinalStatus final_status) {
+void RecordFinalStatus(Origin origin, FinalStatus final_status) {
   DCHECK(final_status != FINAL_STATUS_MAX);
   // FINAL_STATUS_CONTROL_GROUP indicates that the PrerenderContents
   // was created only to measure "would-have-been-prerendered" for
@@ -62,6 +62,23 @@ void RecordFinalStatus(FinalStatus final_status) {
   UMA_HISTOGRAM_ENUMERATION("Prerender.FinalStatus",
                             final_status,
                             FINAL_STATUS_MAX);
+  switch (origin) {
+    case ORIGIN_LINK_REL_PRERENDER:
+    case ORIGIN_PENDING_LINK_REL_PRERENDER:
+      UMA_HISTOGRAM_ENUMERATION("Prerender.FinalStatusLinkRelPrerender",

[cbentzel, 2011/06/22 17:27:32]

Should these be done as 

Prerender.FinalStatus_LinkRelPrerender and Prerender.FinalStatus_Omnibox? That's
more consistent with typical naming schemes.

[dominich, 2011/06/22 19:00:51]

Done.

+                                final_status,
+                                FINAL_STATUS_MAX);
+      break;
+    case ORIGIN_OMNIBOX:
+      UMA_HISTOGRAM_ENUMERATION("Prerender.FinalStatusOmnibox",
+                                final_status,
+                                FINAL_STATUS_MAX);
+      break;
+    default:
+      LOG(WARNING) << "Not logging final status for origin " <<

[cbentzel, 2011/06/22 17:27:32]

This should be a NOTREACHED(); 

[dominich, 2011/06/22 19:00:51]

Done.

+                   NameFromOrigin(origin);
+      break;
+  };
 }
 
 const char* NameFromFinalStatus(FinalStatus final_status) {