Move notification resource loading from content/child to blink

content/child/notifications/pending_notification.h

-// 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.
-
-#ifndef CONTENT_CHILD_NOTIFICATIONS_PENDING_NOTIFICATION_H_
-#define CONTENT_CHILD_NOTIFICATIONS_PENDING_NOTIFICATION_H_
-
-#include <vector>
-
-#include "base/callback_forward.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "content/child/notifications/notification_image_loader.h"
-#include "third_party/WebKit/public/platform/WebURL.h"
-#include "third_party/WebKit/public/platform/modules/notifications/WebNotificationData.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-
-namespace base {
-class SingleThreadTaskRunner;
-}
-
-namespace content {
-
-struct NotificationResources;
-
-// Stores the information associated with a pending notification, and fetches
-// resources for it on the main thread.
-class PendingNotification {
- public:
-  explicit PendingNotification(
-      const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner);
-  ~PendingNotification();
-
-  // Fetches all resources asynchronously on the main thread.
-  void FetchResources(const blink::WebNotificationData& notification_data,
-                      const base::Closure& fetches_finished_callback);
-
-  // Returns a new NotificationResources populated with the resources that have
-  // been fetched.
-  NotificationResources GetResources() const;
-
- private:
-  // Fetches an image using |image_web_url| asynchronously on the main thread.
-  // The |image_callback| will be called on the worker thread.
-  void FetchImageResource(const blink::WebURL& image_web_url,
-                          const ImageLoadCompletedCallback& image_callback);
-
-  // To be called on the worker thread when the notification icon has been
-  // fetched.
-  void DidFetchNotificationIcon(const SkBitmap& bitmap);
-
-  // To be called on the worker thread when the badge has been fetched.
-  void DidFetchBadge(const SkBitmap& bitmap);
-
-  // To be called on the worker thread when an action icon has been fetched.
-  void DidFetchActionIcon(size_t action_index, const SkBitmap& bitmap);
-
-  scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
-
-  SkBitmap notification_icon_;
-
-  SkBitmap badge_;
-
-  std::vector<SkBitmap> action_icons_;
-
-  base::Closure fetches_finished_barrier_closure_;
-
-  std::vector<scoped_refptr<NotificationImageLoader>> image_loaders_;
-
-  base::WeakPtrFactory<PendingNotification> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(PendingNotification);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_CHILD_NOTIFICATIONS_PENDING_NOTIFICATION_H_