Open the LoginDatabase on the DB thread, not the UI thread.

chrome/browser/password_manager/password_store_factory.cc

Index: chrome/browser/password_manager/password_store_factory.cc
diff --git a/chrome/browser/password_manager/password_store_factory.cc b/chrome/browser/password_manager/password_store_factory.cc
index cc2fa43c2985c94ef2264342e628f73671f51484..a4b4894892847771a7d5383fd2983266f9372f3d 100644
--- a/chrome/browser/password_manager/password_store_factory.cc
+++ b/chrome/browser/password_manager/password_store_factory.cc
@@ -17,7 +17,6 @@
 #include "chrome/common/chrome_switches.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/os_crypt/os_crypt_switches.h"
-#include "components/password_manager/core/browser/login_database.h"
 #include "components/password_manager/core/browser/password_store.h"
 #include "components/password_manager/core/browser/password_store_default.h"
 #include "components/password_manager/core/common/password_manager_pref_names.h"
@@ -147,17 +146,6 @@ KeyedService* PasswordStoreFactory::BuildServiceInstanceFor(
 
   base::FilePath login_db_file_path = profile->GetPath();
   login_db_file_path = login_db_file_path.Append(chrome::kLoginDataFileName);
-  scoped_ptr<password_manager::LoginDatabase> login_db(
-      new password_manager::LoginDatabase());
-  {
-    // TODO(paivanof@gmail.com): execution of login_db->Init() should go
-    // to DB thread. http://crbug.com/138903
-    base::ThreadRestrictions::ScopedAllowIO allow_io;
-    if (!login_db->Init(login_db_file_path)) {
-      LOG(ERROR) << "Could not initialize login database.";
-      return NULL;
-    }
-  }
 
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_runner(
       base::MessageLoopProxy::current());
@@ -169,7 +157,7 @@ KeyedService* PasswordStoreFactory::BuildServiceInstanceFor(
 #if defined(OS_WIN)
   ps = new PasswordStoreWin(main_thread_runner,
                             db_thread_runner,
-                            login_db.release(),
+                            login_db_file_path,
                             WebDataServiceFactory::GetPasswordWebDataForProfile(
                                 profile, Profile::EXPLICIT_ACCESS));
 #elif defined(OS_MACOSX)
@@ -241,7 +229,7 @@ KeyedService* PasswordStoreFactory::BuildServiceInstanceFor(
 
   ps = new PasswordStoreX(main_thread_runner,
                           db_thread_runner,
-                          login_db.release(),
+                          login_db_file_path,
                           backend.release());
 #elif defined(USE_OZONE)
   ps = new password_manager::PasswordStoreDefault(