[WIP] Implement notification sound loader

content/child/notifications/notification_sound_loader.h

Index: content/child/notifications/notification_sound_loader.h
diff --git a/content/child/notifications/notification_image_loader.h b/content/child/notifications/notification_sound_loader.h
similarity index 71%
copy from content/child/notifications/notification_image_loader.h
copy to content/child/notifications/notification_sound_loader.h
index 33a38f065a97cedc753a03209f8d0da17103367b..dc0601dec5e9d41d93a3ffbd762836e8f349ecc1 100644
--- a/content/child/notifications/notification_image_loader.h
+++ b/content/child/notifications/notification_sound_loader.h
@@ -1,9 +1,9 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
+// 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_NOTIFICATION_IMAGE_LOADER_H_
-#define CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_IMAGE_LOADER_H_
+#ifndef CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_SOUND_LOADER_H_
+#define CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_SOUND_LOADER_H_
 
 #include <vector>
 
@@ -28,7 +28,7 @@ class WebURLLoader;
 
 namespace content {
 
-struct NotificationImageLoaderDeleter;
+struct NotificationSoundLoaderDeleter;
 
 // Downloads the image associated with a notification and decodes the received
 // image. This must be completed before notifications are shown to the user.
@@ -36,15 +36,15 @@ struct NotificationImageLoaderDeleter;
 //
 // All methods, except for the constructor, are expected to be used on the
 // renderer main thread.
-class NotificationImageLoader
+class NotificationSoundLoader
     : public blink::WebURLLoaderClient,
-      public base::RefCountedThreadSafe<NotificationImageLoader,
-                                        NotificationImageLoaderDeleter> {
-  using ImageLoadCompletedCallback = base::Callback<void(int, const SkBitmap&)>;
+      public base::RefCountedThreadSafe<NotificationSoundLoader,
+                                        NotificationSoundLoaderDeleter> {
+  using SoundLoadCompletedCallback = base::Callback<void(int, const SkBitmap&)>;
 
  public:
-  NotificationImageLoader(
-      const ImageLoadCompletedCallback& callback,
+  NotificationSoundLoader(
+      const SoundLoadCompletedCallback& callback,
       const scoped_refptr<base::SingleThreadTaskRunner>& worker_task_runner);
 
   // Asynchronously starts loading |image_url| using a Blink WebURLLoader. Must
@@ -63,12 +63,12 @@ class NotificationImageLoader
                        const blink::WebURLError& error);
 
  private:
-  friend class base::DeleteHelper<NotificationImageLoader>;
-  friend class base::RefCountedThreadSafe<NotificationImageLoader,
-                                          NotificationImageLoaderDeleter>;
-  friend struct NotificationImageLoaderDeleter;
+  friend class base::DeleteHelper<NotificationSoundLoader>;
+  friend class base::RefCountedThreadSafe<NotificationSoundLoader,
+                                          NotificationSoundLoaderDeleter>;
+  friend struct NotificationSoundLoaderDeleter;
 
-  virtual ~NotificationImageLoader();
+  virtual ~NotificationSoundLoader();
 
   // Invokes the callback on the thread this image loader was started for. When
   // the thread id is zero (the main document), it will be executed immediately.
@@ -82,7 +82,7 @@ class NotificationImageLoader
   // Ensures that we delete the image loader on the main thread.
   void DeleteOnCorrectThread() const;
 
-  ImageLoadCompletedCallback callback_;
+  SoundLoadCompletedCallback callback_;
 
   scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
@@ -94,15 +94,15 @@ class NotificationImageLoader
 
   std::vector<uint8_t> buffer_;
 
-  DISALLOW_COPY_AND_ASSIGN(NotificationImageLoader);
+  DISALLOW_COPY_AND_ASSIGN(NotificationSoundLoader);
 };
 
-struct NotificationImageLoaderDeleter {
-  static void Destruct(const NotificationImageLoader* context) {
+struct NotificationSoundLoaderDeleter {
+  static void Destruct(const NotificationSoundLoader* context) {
     context->DeleteOnCorrectThread();
   }
 };
 
 }  // namespace content
 
-#endif  // CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_IMAGE_LOADER_H_
+#endif  // CONTENT_CHILD_NOTIFICATIONS_NOTIFICATION_SOUND_LOADER_H_