BrowserContext should simply own DownloadManager

chrome/browser/download/chrome_download_manager_delegate_unittest.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 "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop.h"
 #include "base/prefs/pref_service.h"
 #include "base/run_loop.h"
 #include "chrome/browser/download/chrome_download_manager_delegate.h"
@@ skipping 151 matching lines @@
   void OnDownloadTargetDone(DownloadTarget* result,
                             const base::FilePath& target_path,
                             DownloadItem::TargetDisposition disposition,
                             content::DownloadDangerType danger_type,
                             const base::FilePath& intermediate_path);
 
   TestingPrefServiceSyncable* pref_service_;
   base::ScopedTempDir test_download_dir_;
   content::TestBrowserThread ui_thread_;
   content::TestBrowserThread file_thread_;
-  scoped_refptr<content::MockDownloadManager> download_manager_;
+  scoped_ptr<content::MockDownloadManager> download_manager_;
   scoped_refptr<TestChromeDownloadManagerDelegate> delegate_;
   MockWebContentsDelegate web_contents_delegate_;
 };
 
 ChromeDownloadManagerDelegateTest::ChromeDownloadManagerDelegateTest()
     : ChromeRenderViewHostTestHarness(),
       ui_thread_(content::BrowserThread::UI, &message_loop_),
       file_thread_(content::BrowserThread::FILE, &message_loop_),
       download_manager_(new ::testing::NiceMock<content::MockDownloadManager>) {
 }
@@ skipping 183 matching lines @@
     DownloadTarget result;
     base::FilePath expected_prompt_path(GetPathInDownloadDir("foo.txt"));
     EXPECT_CALL(*delegate(),
                 MockPromptUserForDownloadPath(save_as_download.get(),
                                               expected_prompt_path, _))
         .WillOnce(Return(base::FilePath()));
     DetermineDownloadTarget(save_as_download.get(), &result);
     VerifyAndClearExpectations();
   }
 }