Move notification resource loading from content/child to blink

content/child/notifications/pending_notifications_tracker.cc

-// Copyright 2015 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/child/notifications/pending_notifications_tracker.h"
-
-#include <memory>
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/callback.h"
-#include "content/child/notifications/pending_notification.h"
-#include "content/public/common/notification_resources.h"
-
-namespace content {
-
-PendingNotificationsTracker::PendingNotificationsTracker(
-    const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner)
-    : next_notification_id_(0), main_task_runner_(main_task_runner) {}
-
-PendingNotificationsTracker::~PendingNotificationsTracker() {}
-
-void PendingNotificationsTracker::FetchResources(
-    const blink::WebNotificationData& notification_data,
-    blink::WebNotificationDelegate* delegate,
-    const ResourcesCallback& resources_callback) {
-  int32_t notification_id = next_notification_id_++;
-
-  if (delegate)
-    delegate_to_pending_id_map_[delegate] = notification_id;
-
-  base::Closure fetches_finished_callback = base::Bind(
-      &PendingNotificationsTracker::FetchesFinished,
-      base::Unretained(this) /* The pending notifications are owned by this. */,
-      delegate, notification_id, resources_callback);
-
-  std::unique_ptr<PendingNotification> pending_notification(
-      new PendingNotification(main_task_runner_));
-  pending_notification->FetchResources(notification_data,
-                                       fetches_finished_callback);
-
-  pending_notifications_.AddWithID(pending_notification.release(),
-                                   notification_id);
-}
-
-bool PendingNotificationsTracker::CancelResourceFetches(
-    blink::WebNotificationDelegate* delegate) {
-  DCHECK(delegate);
-
-  auto iter = delegate_to_pending_id_map_.find(delegate);
-  if (iter == delegate_to_pending_id_map_.end())
-    return false;
-
-  pending_notifications_.Remove(iter->second);
-  delegate_to_pending_id_map_.erase(iter);
-
-  return true;
-}
-
-void PendingNotificationsTracker::FetchesFinished(
-    blink::WebNotificationDelegate* delegate,
-    int32_t notification_id,
-    const ResourcesCallback& resources_callback) {
-  PendingNotification* pending_notification =
-      pending_notifications_.Lookup(notification_id);
-  DCHECK(pending_notification);
-
-  resources_callback.Run(pending_notification->GetResources());
-
-  if (delegate)
-    delegate_to_pending_id_map_.erase(delegate);
-  pending_notifications_.Remove(notification_id);
-}
-
-}  // namespace content