Wire up the deleteFileSystem operation.

webkit/fileapi/sandbox_mount_point_provider.h

Index: webkit/fileapi/sandbox_mount_point_provider.h
diff --git a/webkit/fileapi/sandbox_mount_point_provider.h b/webkit/fileapi/sandbox_mount_point_provider.h
index 5921bb534b54d4dcf04b11a829d6860e09f06bd4..6df8706a05b7b76e5e7bf0c00414f080570c4480 100644
--- a/webkit/fileapi/sandbox_mount_point_provider.h
+++ b/webkit/fileapi/sandbox_mount_point_provider.h
@@ -43,6 +43,8 @@ class FILEAPI_EXPORT SandboxMountPointProvider
  public:
   typedef FileSystemMountPointProvider::ValidateFileSystemCallback
       ValidateFileSystemCallback;
+  typedef FileSystemMountPointProvider::DeleteFileSystemCallback
+      DeleteFileSystemCallback;
 
   // Origin enumerator interface.
   // An instance of this interface is assumed to be called on the file thread.
@@ -104,6 +106,11 @@ class FILEAPI_EXPORT SandboxMountPointProvider
       int64 offset,
       FileSystemContext* context) const OVERRIDE;
   virtual FileSystemQuotaUtil* GetQuotaUtil() OVERRIDE;
+  virtual void DeleteFileSystem(
+      const GURL& origin_url,
+      FileSystemType type,
+      FileSystemContext* context,
+      const DeleteFileSystemCallback& callback) const OVERRIDE;
 
   FilePath old_base_path() const;
   FilePath new_base_path() const;