Stop returning the true root path of each filesystem from openFileSystem....

webkit/fileapi/file_system_context.h

 // Copyright (c) 2010 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_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_CONTEXT_H_
 
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "webkit/quota/special_storage_policy.h"
 
 class FilePath;
 class GURL;
 
 namespace base {
 class MessageLoopProxy;
 }
 
 namespace quota {
 class SpecialStoragePolicy;
 }
 
 namespace fileapi {
 
 class FileSystemContext;
 class FileSystemPathManager;
 class FileSystemUsageTracker;
+class SandboxMountPointProvider;
 
 struct DefaultContextDeleter;
 
 // This class keeps and provides a file system context for FileSystem API.
 class FileSystemContext
     : public base::RefCountedThreadSafe<FileSystemContext,
                                         DefaultContextDeleter> {
  public:
   FileSystemContext(
       scoped_refptr<base::MessageLoopProxy> file_message_loop,
       scoped_refptr<base::MessageLoopProxy> io_message_loop,
       scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy,
       const FilePath& profile_path,
       bool is_incognito,
       bool allow_file_access_from_files,
       bool unlimited_quota);
   ~FileSystemContext();
 
   // This method can be called on any thread.
   bool IsStorageUnlimited(const GURL& origin);
 
   void DeleteDataForOriginOnFileThread(const GURL& origin_url);
 
   FileSystemPathManager* path_manager() { return path_manager_.get(); }
   FileSystemUsageTracker* usage_tracker() { return usage_tracker_.get(); }
 
  private:
   friend struct DefaultContextDeleter;
   void DeleteOnCorrectThread() const;
+  SandboxMountPointProvider* sandbox_provider() const;
 
   scoped_refptr<base::MessageLoopProxy> file_message_loop_;
   scoped_refptr<base::MessageLoopProxy> io_message_loop_;
 
   scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_;
   const bool allow_file_access_from_files_;
   const bool unlimited_quota_;
 
   scoped_ptr<FileSystemPathManager> path_manager_;
   scoped_ptr<FileSystemUsageTracker> usage_tracker_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(FileSystemContext);
 };
 
 struct DefaultContextDeleter {
   static void Destruct(const FileSystemContext* context) {
     context->DeleteOnCorrectThread();
   }
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_CONTEXT_H_