Move Notification-related Blink API headers into their own directory.

public/platform/WebNotificationManager.h

-// Copyright 2014 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 WebNotificationManager_h
-#define WebNotificationManager_h
-
-#include "WebCallbacks.h"
-#include "WebNotificationPermission.h"
-
-namespace blink {
-
-struct WebNotificationData;
-class WebNotificationDelegate;
-class WebSerializedOrigin;
-class WebServiceWorkerRegistration;
-class WebString;
-
-using WebNotificationShowCallbacks = WebCallbacks<void, void>;
-
-// Provides the services to show platform notifications to the user.
-class WebNotificationManager {
-public:
-    virtual ~WebNotificationManager() { }
-
-    // Shows a page notification on the user's system. These notifications will have their
-    // events delivered to the delegate specified in this call.
-    virtual void show(const WebSerializedOrigin&, const WebNotificationData&, WebNotificationDelegate*) = 0;
-
-    // Shows a persistent notification on the user's system. These notifications will have
-    // their events delivered to a Service Worker rather than the object's delegate. Will
-    // take ownership of the WebNotificationShowCallbacks object.
-    virtual void showPersistent(const WebSerializedOrigin&, const WebNotificationData&, WebServiceWorkerRegistration*, WebNotificationShowCallbacks*) { }
-
-    // Closes a notification previously shown, and removes it if being shown.
-    virtual void close(WebNotificationDelegate*) = 0;
-
-    // Closes a persistent notification identified by its persistent notification Id.
-    virtual void closePersistent(const WebString& persistentNotificationId) { }
-
-    // Indicates that the delegate object is being destroyed, and must no longer
-    // be used by the embedder to dispatch events.
-    virtual void notifyDelegateDestroyed(WebNotificationDelegate*) = 0;
-
-    // Synchronously checks the permission level for the given origin.
-    virtual WebNotificationPermission checkPermission(const WebSerializedOrigin&) = 0;
-};
-
-} // namespace blink
-
-#endif // WebNotificationManager_h
+#include "public/platform/modules/notifications/WebNotificationManager.h"