[chrome/browser/password_manager] favor DCHECK_CURRENTLY_ON for better logs

chrome/browser/password_manager/password_store_x.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 "chrome/browser/password_manager/password_store_x.h"
 
 #include <algorithm>
 #include <map>
 #include <vector>
 
@@ skipping 168 matching lines @@
     if (!forms->empty())
       allow_fallback_ = false;
     return true;
   }
   if (allow_default_store())
     return PasswordStoreDefault::FillBlacklistLogins(forms);
   return false;
 }
 
 void PasswordStoreX::CheckMigration() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::DB));
+  DCHECK_CURRENTLY_ON(BrowserThread::DB);
   if (migration_checked_ || !backend_.get())
     return;
   migration_checked_ = true;
   ssize_t migrated = MigrateLogins();
   if (migrated > 0) {
     VLOG(1) << "Migrated " << migrated << " passwords to native store.";
   } else if (migrated == 0) {
     // As long as we are able to migrate some passwords, we know the native
     // store is working. But if there is nothing to migrate, the "migration"
     // can succeed even when the native store would fail. In this case we
@@ skipping 52 matching lines @@
       // Finally, delete the database file itself. We remove the passwords from
       // it before deleting the file just in case there is some problem deleting
       // the file (e.g. directory is not writable, but file is), which would
       // otherwise cause passwords to re-migrate next (or maybe every) time.
       DeleteAndRecreateDatabaseFile();
     }
   }
   ssize_t result = ok ? forms.size() : -1;
   return result;
 }