Implement PasswordStoreProxyMac and SimplePasswordStoreMac.

components/password_manager/core/browser/password_store_default.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_default.h"
 
 #include <set>
 
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "base/stl_util.h"
 #include "components/password_manager/core/browser/password_store_change.h"
 
 using autofill::PasswordForm;
 
 namespace password_manager {
 
 PasswordStoreDefault::PasswordStoreDefault(
     scoped_refptr<base::SingleThreadTaskRunner> main_thread_runner,
     scoped_refptr<base::SingleThreadTaskRunner> db_thread_runner,
     scoped_ptr<LoginDatabase> login_db)
     : PasswordStore(main_thread_runner, db_thread_runner),
       login_db_(login_db.Pass()) {
 }
 
 PasswordStoreDefault::~PasswordStoreDefault() {
-  if (!GetBackgroundTaskRunner()->BelongsToCurrentThread())
-    GetBackgroundTaskRunner()->DeleteSoon(FROM_HERE, login_db_.release());
 }
 
 bool PasswordStoreDefault::Init(
     const syncer::SyncableService::StartSyncFlare& flare) {
   ScheduleTask(base::Bind(&PasswordStoreDefault::InitOnDBThread, this));
   return PasswordStore::Init(flare);
 }
 
+void PasswordStoreDefault::Shutdown() {
+  PasswordStore::Shutdown();
+  ScheduleTask(base::Bind(&PasswordStoreDefault::ResetLoginDB, this));
+}
+
 void PasswordStoreDefault::InitOnDBThread() {
   DCHECK(GetBackgroundTaskRunner()->BelongsToCurrentThread());
   DCHECK(login_db_);
   if (!login_db_->Init()) {
     login_db_.reset();
     LOG(ERROR) << "Could not create/open login database.";
   }
 }
 
 void PasswordStoreDefault::ReportMetricsImpl(
@@ skipping 115 matching lines @@
     login_db_->stats_table().RemoveRow(origin_domain);
 }
 
 scoped_ptr<InteractionsStats> PasswordStoreDefault::GetSiteStatsImpl(
     const GURL& origin_domain) {
   DCHECK(GetBackgroundTaskRunner()->BelongsToCurrentThread());
   return login_db_ ? login_db_->stats_table().GetRow(origin_domain)
                    : scoped_ptr<InteractionsStats>();
 }
 
+void PasswordStoreDefault::ResetLoginDB() {
+  DCHECK(GetBackgroundTaskRunner()->BelongsToCurrentThread());
+  login_db_.reset();
+}
+
 }  // namespace password_manager