Part 1 of repairing regressions to my old clang check plugins so Nico can

chrome/renderer/notification_provider.h

 // Copyright (c) 2010 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 CHROME_RENDERER_NOTIFICATION_PROVIDER_H_
 #define CHROME_RENDERER_NOTIFICATION_PROVIDER_H_
 #pragma once
 
 #include "chrome/common/desktop_notifications/active_notification_tracker.h"
 #include "chrome/renderer/render_view_observer.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNotification.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNotificationPresenter.h"
 
 namespace WebKit {
 class WebNotificationPermissionCallback;
 }
 
 // NotificationProvider class is owned by the RenderView.  Only
 // to be used on the main thread.
 class NotificationProvider : public RenderViewObserver,
                              public WebKit::WebNotificationPresenter {
  public:
   explicit NotificationProvider(RenderView* render_view);
   virtual ~NotificationProvider();
 
  private:
   // RenderView::Observer implementation.
-  bool OnMessageReceived(const IPC::Message& message);
+  virtual bool OnMessageReceived(const IPC::Message& message);
 
   // WebKit::WebNotificationPresenter interface.
   virtual bool show(const WebKit::WebNotification& proxy);
   virtual void cancel(const WebKit::WebNotification& proxy);
   virtual void objectDestroyed(const WebKit::WebNotification& proxy);
   virtual WebKit::WebNotificationPresenter::Permission checkPermission(
       const WebKit::WebURL& url);
   virtual void requestPermission(const WebKit::WebSecurityOrigin& origin,
       WebKit::WebNotificationPermissionCallback* callback);
 
@@ skipping 10 matching lines @@
   void OnNavigate();
 
   // A tracker object which manages the active notifications and the IDs
   // that are used to refer to them over IPC.
   ActiveNotificationTracker manager_;
 
   DISALLOW_COPY_AND_ASSIGN(NotificationProvider);
 };
 
 #endif  // CHROME_RENDERER_NOTIFICATION_PROVIDER_H_