Modify test case to support streaming operation in sandbox file system.

webkit/browser/fileapi/file_system_context.h

 // 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.
 
 #ifndef WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 #define WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 158 matching lines @@
   WatcherManager* GetWatcherManager(FileSystemType type) const;
 
   // Returns true for sandboxed filesystems. Currently this does
   // the same as GetQuotaUtil(type) != NULL. (In an assumption that
   // all sandboxed filesystems must cooperate with QuotaManager so that
   // they can get deleted)
   bool IsSandboxFileSystem(FileSystemType type) const;
 
   // Returns observers for the given filesystem type.
   const UpdateObserverList* GetUpdateObservers(FileSystemType type) const;
+  const ChangeObserverList* GetChangeObservers(FileSystemType type) const;
   const AccessObserverList* GetAccessObservers(FileSystemType type) const;
 
   // Returns all registered filesystem types.
   void GetFileSystemTypes(std::vector<FileSystemType>* types) const;
 
   // Returns a FileSystemBackend instance for external filesystem
   // type, which is used only by chromeos for now.  This is equivalent to
   // calling GetFileSystemBackend(kFileSystemTypeExternal).
   ExternalFileSystemBackend* external_backend() const;
 
@@ skipping 229 matching lines @@
 
 struct DefaultContextDeleter {
   static void Destruct(const FileSystemContext* context) {
     context->DeleteOnCorrectThread();
   }
 };
 
 }  // namespace storage
 
 #endif  // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_CONTEXT_H_