Promote the priority aware cookie eviction algorithm from experimental status.

content/browser/net/sqlite_persistent_cookie_store.cc

Index: content/browser/net/sqlite_persistent_cookie_store.cc
diff --git a/content/browser/net/sqlite_persistent_cookie_store.cc b/content/browser/net/sqlite_persistent_cookie_store.cc
index 517a8c18a1646d10af600c125a9e1b00d754d606..d3af556f8aa456ee0b345eb96287b8838c11ba73 100644
--- a/content/browser/net/sqlite_persistent_cookie_store.cc
+++ b/content/browser/net/sqlite_persistent_cookie_store.cc
@@ -18,7 +18,6 @@
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/sequenced_task_runner.h"
 #include "base/strings/string_util.h"
@@ -1209,15 +1208,7 @@ net::CookieStore* CreatePersistentCookieStore(
                   BrowserThread::GetBlockingPool()->GetSequenceToken()),
           restore_old_session_cookies,
           storage_policy);
-  net::CookieMonster* cookie_monster =
-      new net::CookieMonster(persistent_store, cookie_monster_delegate);
-
-  const std::string cookie_priority_experiment_group =
-      base::FieldTrialList::FindFullName("CookieRetentionPriorityStudy");
-  cookie_monster->SetPriorityAwareGarbageCollection(
-      cookie_priority_experiment_group == "ExperimentOn");
-
-  return cookie_monster;
+  return new net::CookieMonster(persistent_store, cookie_monster_delegate);
 }
 
 }  // namespace content