[Offline Prefetech] Send GetOperationReqest to the server

components/offline_pages/core/prefetch/prefetch_utils.h

-// Copyright 2017 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 COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_UTILS_H_
-#define COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_UTILS_H_
-
-#include <vector>
-#include "components/offline_pages/core/prefetch/prefetch_types.h"
-
-namespace offline_pages {
-
-namespace proto {
-class Any;
-}  // namespace proto
-
-// The fully qualified type name for PageBundle defined in proto.
-extern const char kPageBundleTypeURL[];
-
-// Parse PageBundle data stored as Any proto data. True is returned when the
-// parsing succeeds and the result pages are stored in |pages|.
-bool ParsePageBundleInAnyData(const proto::Any& any_data,
-                              std::vector<RenderPageInfo>* pages);
-
-}  // namespace offline_pages
-
-#endif  // COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_UTILS_H_