Rename StorageMonitor Initialize function to EnsureInitialized for better understanding.

chrome/browser/media_galleries/media_file_system_registry_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.
 
 // MediaFileSystemRegistry unit tests.
 
 #include <algorithm>
 #include <set>
 
 #include "base/bind_helpers.h"
@@ skipping 753 matching lines @@
   test::TestVolumeMountWatcherWin* mount_watcher =
       new test::TestVolumeMountWatcherWin;
   portable_device_watcher->set_use_dummy_mtp_storage_info(true);
   monitor_.reset(new test::TestStorageMonitorWin(
       mount_watcher, portable_device_watcher));
 #else
   monitor_.reset(new test::TestStorageMonitor());
   monitor_->MarkInitialized();
 #endif
   base::RunLoop runloop;
-  monitor_->Initialize(runloop.QuitClosure());
+  monitor_->EnsureInitialized(runloop.QuitClosure());
   runloop.Run();
 
   DeleteContents();
   SetRenderProcessHostFactory(&rph_factory_);
 
   test_file_system_context_ = new TestMediaFileSystemContext(
       g_browser_process->media_file_system_registry());
 
 #if defined(OS_CHROMEOS)
   test_user_manager_.reset(new chromeos::ScopedTestUserManager());
@@ skipping 277 matching lines @@
     ASSERT_TRUE(PathService::Get(chrome::DIR_USER_VIDEOS, &path));
     profile_state->AddNameForAllCompare(path.BaseName().LossyDisplayName());
 
     profile_state->CheckGalleries("names-dir", one_expectation, auto_galleries);
   } else {
     profile_state->CheckGalleries("names", one_expectation, one_expectation);
   }
 }
 
 }  // namespace chrome