Manage IsolatedContext with reference counts

webkit/fileapi/isolated_file_util_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 <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 57 matching lines @@
         NULL /* quota_manager */,
         data_dir_.path(),
         CreateAllowFileAccessOptions());
 
     // For cross-FileUtil copy/move tests.
     other_file_util_.reset(new LocalFileUtil());
     other_file_util_helper_.SetUp(file_system_context_, other_file_util_.get());
   }
 
   void TearDown() {
-    isolated_context()->RevokeIsolatedFileSystem(filesystem_id_);
+    isolated_context()->RemoveReference(filesystem_id_);
     other_file_util_helper_.TearDown();
   }
 
  protected:
   IsolatedContext* isolated_context() const {
     return IsolatedContext::GetInstance();
   }
   const FilePath& root_path() const {
     return data_dir_.path();
   }
@@ skipping 353 matching lines @@
         context.get(), other_file_util(), file_util(), dest_path, src_path);
     ASSERT_TRUE(result == base::PLATFORM_FILE_ERROR_FAILED ||
                 result == base::PLATFORM_FILE_ERROR_NOT_EMPTY);
 
     VerifyDirectoriesHaveSameContent(file_util(), other_file_util(),
                                      src_path, dest_path);
   }
 }
 
 }  // namespace fileapi