Handle inconsistency between DB and Files

webkit/fileapi/sandbox_mount_point_provider.h

 // Copyright (c) 2011 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_SANDBOX_MOUNT_POINT_PROVIDER_H_
 #define WEBKIT_FILEAPI_SANDBOX_MOUNT_POINT_PROVIDER_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 125 matching lines @@
       quota::QuotaManagerProxy* proxy,
       const GURL& origin_url,
       FileSystemType type,
       int64 delta) OVERRIDE;
   virtual void StartUpdateOriginOnFileThread(
       const GURL& origin_url,
       FileSystemType type) OVERRIDE;
   virtual void EndUpdateOriginOnFileThread(
       const GURL& origin_url,
       FileSystemType type) OVERRIDE;
+  virtual void InvalidateUsageCache(const GURL& origin_url,
+                                    FileSystemType type) OVERRIDE;
 
   FileSystemQuotaUtil* quota_util() { return this; }
 
  private:
   // Returns a path to the usage cache file.
   FilePath GetUsageCachePathForOriginAndType(
       const GURL& origin_url,
       FileSystemType type) const;
 
   FilePath OldCreateFileSystemRootPath(
@@ skipping 17 matching lines @@
 
   // Acccessed only on the file thread.
   std::set<GURL> visited_origins_;
 
   DISALLOW_COPY_AND_ASSIGN(SandboxMountPointProvider);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_SANDBOX_MOUNT_POINT_PROVIDER_H_