Move all components/offline_pages/ files into component/offline_pages/core

components/offline_pages/background/change_requests_state_task.cc

-// Copyright 2016 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.
-
-#include "components/offline_pages/background/change_requests_state_task.h"
-
-#include "base/bind.h"
-
-namespace offline_pages {
-
-ChangeRequestsStateTask::ChangeRequestsStateTask(
-    RequestQueueStore* store,
-    const std::vector<int64_t>& request_ids,
-    const SavePageRequest::RequestState new_state,
-    const RequestQueueStore::UpdateCallback& callback)
-    : store_(store),
-      request_ids_(request_ids.begin(), request_ids.end()),
-      new_state_(new_state),
-      callback_(callback),
-      weak_ptr_factory_(this) {}
-
-ChangeRequestsStateTask::~ChangeRequestsStateTask() {}
-
-void ChangeRequestsStateTask::Run() {
-  ReadRequests();
-}
-
-void ChangeRequestsStateTask::ReadRequests() {
-  if (request_ids_.empty()) {
-    CompleteEarly(ItemActionStatus::NOT_FOUND);
-    return;
-  }
-
-  store_->GetRequests(base::Bind(&ChangeRequestsStateTask::SelectItemsToUpdate,
-                                 weak_ptr_factory_.GetWeakPtr()));
-}
-
-void ChangeRequestsStateTask::SelectItemsToUpdate(
-    bool success,
-    std::vector<std::unique_ptr<SavePageRequest>> requests) {
-  if (!success) {
-    CompleteEarly(ItemActionStatus::STORE_ERROR);
-    return;
-  }
-
-  std::vector<SavePageRequest> items_to_update;
-  for (const auto& request : requests) {
-    // If this request is in our list, update it.
-    if (request_ids_.count(request->request_id()) > 0) {
-      request->set_request_state(new_state_);
-      items_to_update.push_back(*request);
-      // Items that are missing before the update will be marked as not found
-      // before the callback.
-      request_ids_.erase(request->request_id());
-    }
-  }
-
-  if (items_to_update.empty()) {
-    CompleteEarly(ItemActionStatus::NOT_FOUND);
-    return;
-  }
-
-  store_->UpdateRequests(items_to_update,
-                         base::Bind(&ChangeRequestsStateTask::UpdateCompleted,
-                                    weak_ptr_factory_.GetWeakPtr()));
-}
-
-void ChangeRequestsStateTask::UpdateCompleted(
-    std::unique_ptr<UpdateRequestsResult> update_result) {
-  CompleteWithStatus(std::move(update_result), ItemActionStatus::NOT_FOUND);
-}
-
-void ChangeRequestsStateTask::CompleteEarly(ItemActionStatus status) {
-  // TODO(fgorski): store_->state() once implemented
-  std::unique_ptr<UpdateRequestsResult> result(
-      new UpdateRequestsResult(StoreState::LOADED));
-  CompleteWithStatus(std::move(result), status);
-}
-
-void ChangeRequestsStateTask::CompleteWithStatus(
-    std::unique_ptr<UpdateRequestsResult> result,
-    ItemActionStatus status) {
-  // Mark items as not found, if they are still in the request IDs set.
-  for (int64_t request_id : request_ids_)
-    result->item_statuses.push_back(std::make_pair(request_id, status));
-  callback_.Run(std::move(result));
-  TaskComplete();
-}
-
-}  // namespace offline_pages