Initial commit of CookieMonster statistics.

chrome/browser/net/sqlite_persistent_cookie_store.cc

Index: chrome/browser/net/sqlite_persistent_cookie_store.cc
diff --git a/chrome/browser/net/sqlite_persistent_cookie_store.cc b/chrome/browser/net/sqlite_persistent_cookie_store.cc
index a098c44a4b4196806415eafe3c947eef2bdd3da5..30833bf3215e6137b2df484d1931800e6407cc7c 100644
--- a/chrome/browser/net/sqlite_persistent_cookie_store.cc
+++ b/chrome/browser/net/sqlite_persistent_cookie_store.cc
@@ -231,7 +231,9 @@ void SQLitePersistentCookieStore::Backend::Commit() {
         break;
     }
   }
-  transaction.Commit();
+  bool succeeded = transaction.Commit();
+  UMA_HISTOGRAM_ENUMERATION("net.CookieBackingStoreUpdateResults",
+                            succeeded ? 0 : 1, 2);
 }
 
 // Fire off a close message to the background thread.  We could still have a