Use ScopedTempDir instead of DIR_TEST_DATA for creating test data.

chrome/browser/password_manager/login_database_unittest.cc

 // Copyright (c) 2011 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 "testing/gtest/include/gtest/gtest.h"
 
 #include "base/basictypes.h"
 #include "base/file_util.h"
 #include "base/path_service.h"
+#include "base/scoped_temp_dir.h"
 #include "base/string_number_conversions.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/password_manager/login_database.h"
 #include "chrome/common/chrome_paths.h"
 #include "webkit/forms/password_form.h"
 
 using webkit::forms::PasswordForm;
 
 class LoginDatabaseTest : public testing::Test {
  protected:
   virtual void SetUp() {
-    PathService::Get(chrome::DIR_TEST_DATA, &file_);
-    const std::string test_db =
-        "TestMetadataStoreMacDatabase" +
-        base::Int64ToString(base::Time::Now().ToInternalValue()) + ".db";
-    file_ = file_.AppendASCII(test_db);
-    file_util::Delete(file_, false);
-  }
-
-  virtual void TearDown() {
-    file_util::Delete(file_, false);
+    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
+    file_ = temp_dir_.path().AppendASCII("TestMetadataStoreMacDatabase");
   }
 
   FilePath file_;
+  ScopedTempDir temp_dir_;
 };
 
 TEST_F(LoginDatabaseTest, Logins) {
   scoped_ptr<LoginDatabase> db(new LoginDatabase());
 
   ASSERT_TRUE(db->Init(file_));
 
   std::vector<PasswordForm*> result;
 
   // Verify the database is empty.
@@ skipping 229 matching lines @@
   // GetLogins should give the blacklisted result.
   EXPECT_TRUE(db->GetLogins(form, &result));
   EXPECT_EQ(1U, result.size());
   ClearResults(&result);
 
   // So should GetAllBlacklistedLogins.
   EXPECT_TRUE(db->GetBlacklistLogins(&result));
   EXPECT_EQ(1U, result.size());
   ClearResults(&result);
 }