Use NotificationResources instead of a bare SkBitmap.

content/public/common/notification_resources.h

Index: content/public/common/notification_resources.h
diff --git a/content/public/common/notification_resources.h b/content/public/common/notification_resources.h
new file mode 100644
index 0000000000000000000000000000000000000000..8986f96bee6fb08f88c7e2eba83d5f41f62cf16b
--- /dev/null
+++ b/content/public/common/notification_resources.h
@@ -0,0 +1,23 @@
+// 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_PUBLIC_COMMON_NOTIFICATION_RESOURCES_H_
+#define CONTENT_PUBLIC_COMMON_NOTIFICATION_RESOURCES_H_
+
+#include "content/common/content_export.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+
+namespace content {
+
+// Structure to hold the resources associated with a Web Notification.
+// TODO(mvanouwerkerk): Add resources for e.g. action icons - crbug.com/581336.
+struct CONTENT_EXPORT NotificationResources {
+  // Main icon for the notification. The bitmap may be empty if the developer
+  // did not provide an icon, or fetching of the icon failed.
+  SkBitmap notification_icon;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_COMMON_NOTIFICATION_RESOURCES_H_