Pass FROM_HERE to ObserverListThreadSafe::Notify to improve profile.

components/password_manager/core/browser/password_store.cc

 // Copyright 2014 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 "components/password_manager/core/browser/password_store.h"
 
 #include "base/bind.h"
 #include "base/debug/dump_without_crashing.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 223 matching lines @@
 
 void PasswordStore::LogStatsForBulkDeletionDuringRollback(int num_deletions) {
   UMA_HISTOGRAM_COUNTS("PasswordManager.NumPasswordsDeletedDuringRollback",
                        num_deletions);
 }
 
 void PasswordStore::NotifyLoginsChanged(
     const PasswordStoreChangeList& changes) {
   DCHECK(GetBackgroundTaskRunner()->BelongsToCurrentThread());
   if (!changes.empty()) {
-    observers_->Notify(&Observer::OnLoginsChanged, changes);
+    observers_->Notify(FROM_HERE, &Observer::OnLoginsChanged, changes);
 #if defined(PASSWORD_MANAGER_ENABLE_SYNC)
     if (syncable_service_)
       syncable_service_->ActOnPasswordStoreChanges(changes);
 #endif
   }
 }
 
 template <typename BackendFunc>
 void PasswordStore::Schedule(BackendFunc func,
                              PasswordStoreConsumer* consumer) {
@@ skipping 47 matching lines @@
   syncable_service_->InjectStartSyncFlare(flare);
 }
 
 void PasswordStore::DestroySyncableService() {
   DCHECK(GetBackgroundTaskRunner()->BelongsToCurrentThread());
   syncable_service_.reset();
 }
 #endif
 
 }  // namespace password_manager