Add the Blink APIs for the WebNotificationManager.

public/platform/Platform.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 67 matching lines @@
 class WebGestureCurveTarget;
 class WebGestureCurve;
 class WebGraphicsContext3DProvider;
 class WebIDBFactory;
 class WebMIDIAccessor;
 class WebMIDIAccessorClient;
 class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 class WebMessagePortChannel;
 class WebMimeRegistry;
-class WebNotificationPresenter;
+class WebNotificationManager;
 class WebPluginListBuilder;
 class WebPrescientNetworking;
 class WebPublicSuffixList;
 class WebRTCPeerConnectionHandler;
 class WebRTCPeerConnectionHandlerClient;
 class WebSandboxSupport;
 class WebSecurityOrigin;
 class WebScrollbarBehavior;
 class WebSocketHandle;
 class WebSocketStreamHandle;
@@ skipping 526 matching lines @@
         WebStorageQuotaCallbacks) { }
 
 
     // WebDatabase --------------------------------------------------------
 
     virtual WebDatabaseObserver* databaseObserver() { return 0; }
 
 
     // Web Notifications --------------------------------------------------
 
-    virtual WebNotificationPresenter* notificationPresenter() { return 0; }
+    virtual WebNotificationManager* notificationManager() { return 0; }
 
 
     // Geofencing ---------------------------------------------------------
 
     virtual WebGeofencingProvider* geofencingProvider() { return 0; }
 
 protected:
     virtual ~Platform() { }
 };
 
 } // namespace blink
 
 #endif