Revert 144807 - Rewrite DownloadsApiTest in C++.

chrome/browser/extensions/api/downloads/downloads_apitest.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/extensions/extension_apitest.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/pref_names.h"
 
 class DownloadsApiTest : public ExtensionApiTest {
  public:
   void SetUpTempDownloadsDir() {
     ASSERT_TRUE(tmpdir.CreateUniqueTempDir());
     browser()->profile()->GetPrefs()->SetFilePath(
         prefs::kDownloadDefaultDirectory, tmpdir.path());
   }
 
  private:
   ScopedTempDir tmpdir;
 };
 
 
 // This test is disabled. See bug http://crbug.com/130950
 IN_PROC_BROWSER_TEST_F(DownloadsApiTest, DISABLED_DownloadsApiTest) {
   SetUpTempDownloadsDir();
   ASSERT_TRUE(StartTestServer());
   ASSERT_TRUE(RunExtensionTest("downloads")) << message_;
 }