Destroy MediaFileSystemRegistry before StorageMonitor in MTPDeviceDelegateImplWinTest.

chrome/browser/media_galleries/win/mtp_device_delegate_impl_win_unittest.cc

 // Copyright 2013 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 <stddef.h>
 
 #include <utility>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 93 matching lines @@
   extension_system->CreateExtensionService(
       base::CommandLine::ForCurrentProcess(), base::FilePath(), false);
 
   std::vector<std::string> all_permissions;
   all_permissions.push_back("allAutoDetected");
   all_permissions.push_back("read");
   extension_ = AddMediaGalleriesApp("all", all_permissions, profile());
 }
 
 void MTPDeviceDelegateImplWinTest::TearDown() {
+  // The MediaFileSystemRegistry owned by the TestingBrowserProcess must be
+  // destroyed before the StorageMonitor because it calls
+  // StorageMonitor::RemoveObserver() in its destructor.
+  TestingBrowserProcess::DeleteInstance();
+
   // Windows storage monitor must be destroyed on the same thread
   // as construction.
   TestStorageMonitor::Destroy();
 
   ChromeRenderViewHostTestHarness::TearDown();
 }
 
 void MTPDeviceDelegateImplWinTest::ProcessAttach(
     const std::string& id,
     const base::string16& label,
@@ skipping 51 matching lines @@
   for (FSInfoMap::iterator i = results.begin(); i != results.end(); ++i) {
     MediaFileSystemInfo info = i->second;
     if (info.path == location) {
       CheckGalleryInfo(info, location.LossyDisplayName(), location, true, true);
       checked = true;
       break;
     }
   }
   EXPECT_TRUE(checked);
 }