Pass FROM_HERE to ObserverListThreadSafe::Notify to improve profile.

net/cert/cert_database_android.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 "base/logging.h"
 #include "base/observer_list_threadsafe.h"
 #include "net/base/net_errors.h"
 #include "net/ssl/openssl_client_key_store.h"
@@ skipping 30 matching lines @@
   NotifyObserversOfCertAdded(NULL);
   // Dump the OpenSSLClientKeyStore to drop references to now disconnected
   // PrivateKeys stored in the in-memory key store. Note: this assumes that
   // every SSLClientAuthCache is dumped as part of notifying
   // OnCertAdded. Otherwise client auth decisions will be silently converted to
   // no-certificate decisions. See https://crbug.com/382696
   OpenSSLClientKeyStore::GetInstance()->Flush();
 }
 
 void CertDatabase::OnAndroidKeyChainChanged() {
-  observer_list_->Notify(&Observer::OnCACertChanged,
+  observer_list_->Notify(FROM_HERE, &Observer::OnCACertChanged,
                          scoped_refptr<X509Certificate>());
 }
 
 }  // namespace net