Replace more ObserverList with base::ObserverList.

net/cert/cert_database_mac.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/cert/cert_database.h"
 
 #include <Security/Security.h>
 
 #include "base/logging.h"
 #include "base/mac/mac_logging.h"
@@ skipping 101 matching lines @@
 
 void CertDatabase::SetMessageLoopForKeychainEvents() {
   // Shutdown will take care to delete the notifier on the right thread.
   if (notifier_.get())
     notifier_.release()->Shutdown();
 
   notifier_.reset(new Notifier(this, base::MessageLoopForUI::current()));
 }
 
 CertDatabase::CertDatabase()
-    : observer_list_(new ObserverListThreadSafe<Observer>) {
+    : observer_list_(new base::ObserverListThreadSafe<Observer>) {
 }
 
 CertDatabase::~CertDatabase() {
   // Shutdown will take care to delete the notifier on the right thread.
   if (notifier_.get())
     notifier_.release()->Shutdown();
 }
 
 int CertDatabase::CheckUserCert(X509Certificate* cert) {
   if (!cert)
@@ skipping 30 matching lines @@
     case errSecDuplicateItem:
       return OK;
     default:
       OSSTATUS_LOG(ERROR, err) << "CertDatabase failed to add cert to keychain";
       // TODO(snej): Map the error code more intelligently.
       return ERR_ADD_USER_CERT_FAILED;
   }
 }
 
 }  // namespace net