Separate same domain and cross domain <link rel=...> prerenders for reporting.

chrome/browser/prerender/prerender_origin.cc

Index: chrome/browser/prerender/prerender_origin.cc
diff --git a/chrome/browser/prerender/prerender_origin.cc b/chrome/browser/prerender/prerender_origin.cc
index 084120dd2b18a212af3c62eeee8262a3addd25e1..9903359a8f0e8e87e8ab57df0af5035aa6aaff37 100644
--- a/chrome/browser/prerender/prerender_origin.cc
+++ b/chrome/browser/prerender/prerender_origin.cc
@@ -12,17 +12,20 @@ namespace prerender {
 namespace {
 
 const char* kOriginNames[] = {
-  "Link Rel Prerender",
+  "[Deprecated] Link Rel Prerender (original)",
   "[Deprecated] Omnibox (original)",
   "GWS Prerender",
   "[Deprecated] Omnibox (conservative)",
   "[Deprecated] Omnibox (exact)",
   "Omnibox",
+  "Link Rel Prerender (same domain)",
+  "Link Rel Prerender (cross domain)",
   "Max"
 };
 COMPILE_ASSERT(arraysize(kOriginNames) == ORIGIN_MAX + 1,
                PrerenderOrigin_name_count_mismatch);
-}
+
+}  // namespace
 
 const char* NameFromOrigin(Origin origin) {
   DCHECK(static_cast<int>(origin) >= 0 &&