[WIP] Implement notification sound loader

content/child/notifications/pending_notifications_tracker.h

 // 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.
 
 #ifndef CONTENT_CHILD_NOTIFICATIONS_PENDING_NOTIFICATIONS_TRACKER_H_
 #define CONTENT_CHILD_NOTIFICATIONS_PENDING_NOTIFICATIONS_TRACKER_H_
 
 #include <map>
 
 #include "base/id_map.h"
@@ skipping 11 matching lines @@
 
 namespace blink {
 struct WebNotificationData;
 class WebNotificationDelegate;
 class WebSerializedOrigin;
 }
 
 namespace content {
 
 class NotificationImageLoader;
+class NotificationSoundLoader;
 class NotificationManager;
 
 // Type definition for the callback signature which is to be invoked when the
 // resources associated with a notification have been fetched.
 using NotificationResourcesFetchedCallback =
     base::Callback<void(const SkBitmap&)>;
 
 // Tracks all aspects of all pending Web Notifications. Most notably, it's in
 // charge of ensuring that all resource fetches associated with the notification
 // are completed as expected. The data associated with the notifications is
@@ skipping 20 matching lines @@
       const blink::WebNotificationData& notification_data,
       const NotificationResourcesFetchedCallback& callback);
 
   // Cancels all pending and in-fligth fetches for the page notification
   // identified by |delegate|. Returns if the notification was cancelled.
   bool CancelPageNotificationFetches(blink::WebNotificationDelegate* delegate);
 
  private:
   // To be called on the worker thread when the pending page notification
   // identified by |notification_id| has finished fetching the icon.
-  void DidFetchPageNotification(blink::WebNotificationDelegate* delegate,
+  void DidFetchPageNotificationIcon(blink::WebNotificationDelegate* delegate,
                                 int notification_id,
                                 const SkBitmap& icon);
 
+  // To be called on the worker thread when the pending page notification
+  // identified by |notification_id| has finished fetching the sound.
+  void DidFetchPageNotificationSound(blink::WebNotificationDelegate* delegate,
+                                int notification_id,
+                                const SkBitmap& sound);
+
   // To be called on the worker thread when the pending persistent notification
   // identified by |notification_id| has finished fetching the icon.
-  void DidFetchPersistentNotification(int notification_id,
+  void DidFetchPersistentNotificationIcon(int notification_id,
                                       const SkBitmap& icon);
 
-  // Common code for starting to fetch resources associated with any kind of
+  // To be called on the worker thread when the pending persistent notification
+  // identified by |notification_id| has finished fetching the sound.
+  void DidFetchPersistentNotificationSound(int notification_id,
+                                      const SkBitmap& sound);
+
+  // Common code for starting to fetch icon associated with any kind of
   // notification. Will return the id of the pending notification as allocated
   // in the |pending_notifications_| map.
-  int FetchNotificationResources(
+  int FetchNotificationIcon(
       const blink::WebNotificationData& notification_data,
       const NotificationResourcesFetchedCallback& callback,
       const scoped_refptr<NotificationImageLoader>& image_loader);
 
+  // Common code for starting to fetch sound associated with any kind of
+  // notification. Will return the id of the pending notification as allocated
+  // in the |pending_notifications_| map.
+  int FetchNotificationSound(
+      const blink::WebNotificationData& notification_data,
+      const NotificationResourcesFetchedCallback& callback,
+      const scoped_refptr<NotificationSoundLoader>& sound_loader);
+
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
 
   struct PendingNotification;
 
   // List of the notifications whose resources are still being fetched.
   IDMap<PendingNotification, IDMapOwnPointer> pending_notifications_;
 
   // In order to be able to cancel pending page notifications by delegate, store
   // a mapping of the delegate to the pending notification id as well.
   std::map<blink::WebNotificationDelegate*, int> delegate_to_pending_id_map_;
 
   base::WeakPtrFactory<PendingNotificationsTracker> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PendingNotificationsTracker);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_NOTIFICATIONS_PENDING_NOTIFICATIONS_TRACKER_H_