chrome: Use base::MessageLoop. (Part 3)

chrome/browser/chromeos/drive/remove_stale_cache_files_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 <string>
 
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
@@ skipping 36 matching lines @@
     cache_->RequestInitializeForTesting();
     message_loop_.RunUntilIdle();
 
     FileError error = FILE_ERROR_FAILED;
     resource_metadata_->Initialize(
         google_apis::test_util::CreateCopyResultCallback(&error));
     message_loop_.RunUntilIdle();
     ASSERT_EQ(FILE_ERROR_OK, error);
   }
 
-  MessageLoopForUI message_loop_;
+  base::MessageLoopForUI message_loop_;
   content::TestBrowserThread ui_thread_;
   base::ScopedTempDir temp_dir_;
 
   scoped_ptr<FileCache, test_util::DestroyHelperForTests> cache_;
   scoped_ptr<ResourceMetadata, test_util::DestroyHelperForTests>
       resource_metadata_;
   scoped_ptr<FakeFreeDiskSpaceGetter> fake_free_disk_space_getter_;
 };
 
 TEST_F(RemoveStaleCacheFilesTest, RemoveStaleCacheFiles) {
@@ skipping 20 matching lines @@
 
   // Remove stale cache files.
   RemoveStaleCacheFiles(cache_.get(), resource_metadata_.get());
 
   // Verify that the cache entry is deleted.
   EXPECT_FALSE(cache_->GetCacheEntry(resource_id, md5, &cache_entry));
 }
 
 }  // namespace internal
 }  // namespace drive