The platform notification context should observe the Service Worker Context.

content/browser/notifications/notification_message_filter.h

Index: content/browser/notifications/notification_message_filter.h
diff --git a/content/browser/notifications/notification_message_filter.h b/content/browser/notifications/notification_message_filter.h
index ad9072877a723964ce896acff965ffb8b0ee57c8..75b0895051b1a459e256d310dba7e150297fce40 100644
--- a/content/browser/notifications/notification_message_filter.h
+++ b/content/browser/notifications/notification_message_filter.h
@@ -17,7 +17,7 @@ class SkBitmap;
 namespace content {
 
 class BrowserContext;
-class PlatformNotificationContext;
+class PlatformNotificationContextImpl;
 struct PlatformNotificationData;
 class PlatformNotificationService;
 class ResourceContext;
@@ -26,7 +26,7 @@ class NotificationMessageFilter : public BrowserMessageFilter {
  public:
   NotificationMessageFilter(
       int process_id,
-      PlatformNotificationContext* notification_context,
+      PlatformNotificationContextImpl* notification_context,
       ResourceContext* resource_context,
       BrowserContext* browser_context);
 
@@ -73,7 +73,7 @@ class NotificationMessageFilter : public BrowserMessageFilter {
       const GURL& origin);
 
   int process_id_;
-  scoped_refptr<PlatformNotificationContext> notification_context_;
+  scoped_refptr<PlatformNotificationContextImpl> notification_context_;
   ResourceContext* resource_context_;
   BrowserContext* browser_context_;