Implement GetJobResponse and merge JobData into DataManager.

content/browser/background_fetch/background_fetch_job_data.cc

-// 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.
-
-#include "content/browser/background_fetch/background_fetch_job_data.h"
-
-#include "base/memory/ptr_util.h"
-#include "content/browser/background_fetch/background_fetch_job_info.h"
-
-namespace content {
-
-BackgroundFetchJobData::BackgroundFetchJobData(
-    BackgroundFetchRequestInfos& request_infos)
-    : request_infos_(request_infos) {}
-
-BackgroundFetchJobData::~BackgroundFetchJobData() {}
-
-bool BackgroundFetchJobData::UpdateBackgroundFetchRequestState(
-    const std::string& fetch_guid,
-    DownloadItem::DownloadState state,
-    DownloadInterruptReason interrupt_reason) {
-  // Make sure that the request was expected to be in-progress.
-  auto index_iter = request_info_index_.find(fetch_guid);
-  DCHECK(index_iter != request_info_index_.end());
-  DCHECK_EQ(fetch_guid, request_infos_[index_iter->second].guid());
-
-  // Set the state of the request and the interrupt reason.
-  request_infos_[index_iter->second].set_state(state);
-  request_infos_[index_iter->second].set_interrupt_reason(interrupt_reason);
-
-  // If the new state is complete or cancelled, remove the in-progress request.
-  switch (state) {
-    case DownloadItem::DownloadState::COMPLETE:
-    case DownloadItem::DownloadState::CANCELLED:
-      request_info_index_.erase(index_iter);
-    case DownloadItem::DownloadState::IN_PROGRESS:
-    case DownloadItem::DownloadState::INTERRUPTED:
-    case DownloadItem::DownloadState::MAX_DOWNLOAD_STATE:
-      break;
-  }
-
-  // Return a boolean indicating whether there are more requests to be
-  // processed.
-  return next_request_info_ != request_infos_.size();
-}
-
-const BackgroundFetchRequestInfo&
-BackgroundFetchJobData::GetNextBackgroundFetchRequestInfo() {
-  DCHECK(next_request_info_ != request_infos_.size());
-
-  const BackgroundFetchRequestInfo& next_request =
-      request_infos_[next_request_info_];
-  DCHECK_EQ(next_request.state(),
-            DownloadItem::DownloadState::MAX_DOWNLOAD_STATE);
-  request_info_index_[next_request.guid()] = next_request_info_++;
-
-  return next_request;
-}
-
-bool BackgroundFetchJobData::IsComplete() const {
-  return ((next_request_info_ == request_infos_.size()) &&
-          request_info_index_.empty());
-}
-
-bool BackgroundFetchJobData::HasRequestsRemaining() const {
-  return next_request_info_ != request_infos_.size();
-}
-
-void BackgroundFetchJobData::SetRequestDownloadGuid(
-    const std::string& request_guid,
-    const std::string& download_guid) {
-  auto index_iter = request_info_index_.find(request_guid);
-  DCHECK(index_iter != request_info_index_.end());
-  request_infos_[index_iter->second].set_download_guid(download_guid);
-}
-}  // namespace content