Initialize PasswordReuseDetector on PasswordStore initialization on Mac.

chrome/browser/password_manager/password_store_proxy_mac.cc

 // Copyright 2015 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 "chrome/browser/password_manager/password_store_proxy_mac.h"
 
 #include <string>
 #include <utility>
 
 #include "base/metrics/histogram_macros.h"
@@ skipping 28 matching lines @@
     const syncer::SyncableService::StartSyncFlare& flare) {
   // Set up a background thread.
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   thread_.reset(new base::Thread("Chrome_PasswordStore_Thread"));
 
   if (!thread_->Start()) {
     thread_.reset();
     return false;
   }
 
-  if (!password_manager::PasswordStore::Init(flare))
+  if (!ScheduleTask(base::Bind(
+          &PasswordStoreProxyMac::InitOnBackgroundThread, this,
+          static_cast<MigrationStatus>(migration_status_.GetValue()))))
     return false;
 
-  return ScheduleTask(
-      base::Bind(&PasswordStoreProxyMac::InitOnBackgroundThread, this,
-                 static_cast<MigrationStatus>(migration_status_.GetValue())));
+  return password_manager::PasswordStore::Init(flare);
 }
 
 void PasswordStoreProxyMac::ShutdownOnUIThread() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   PasswordStore::ShutdownOnUIThread();
   thread_->Stop();
 
   // Execute the task which are still pending.
   FlushPendingTasks();
 
@@ skipping 144 matching lines @@
 
 std::vector<password_manager::InteractionsStats>
 PasswordStoreProxyMac::GetAllSiteStatsImpl() {
   return GetBackend()->GetAllSiteStatsImpl();
 }
 
 std::vector<password_manager::InteractionsStats>
 PasswordStoreProxyMac::GetSiteStatsImpl(const GURL& origin_domain) {
   return GetBackend()->GetSiteStatsImpl(origin_domain);
 }