Revert 233815 "Quota: Implement QuotaBackendImpl"

trunk/src/webkit/browser/fileapi/sandbox_file_system_backend_delegate.h

 // Copyright 2013 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_SANDBOX_FILE_SYSTEM_BACKEND_DELEGATE_H_
 #define WEBKIT_BROWSER_FILEAPI_SANDBOX_FILE_SYSTEM_BACKEND_DELEGATE_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 169 matching lines @@
 
   const FileSystemOptions& file_system_options() const {
     return file_system_options_;
   }
 
   FileSystemFileUtil* sync_file_util();
 
  private:
   friend class SandboxQuotaObserver;
   friend class SandboxFileSystemTestHelper;
-  friend class QuotaBackendImpl;
   FRIEND_TEST_ALL_PREFIXES(SandboxFileSystemBackendDelegateTest, IsAccessValid);
 
   // Performs API-specific validity checks on the given path |url|.
   // Returns true if access to |url| is valid in this filesystem.
   bool IsAccessValid(const FileSystemURL& url) const;
 
   // Returns true if the given |url|'s scheme is allowed to access
   // filesystem.
   bool IsAllowedScheme(const GURL& url) const;
 
@@ skipping 40 matching lines @@
   base::Time next_release_time_for_open_filesystem_stat_;
 
   base::WeakPtrFactory<SandboxFileSystemBackendDelegate> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SandboxFileSystemBackendDelegate);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_SANDBOX_FILE_SYSTEM_BACKEND_DELEGATE_H_