Only grant MidiSysExMessage if needed.

content/browser/renderer_host/media/midi_dispatcher_host.h

 // Copyright 2013 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_BROWSER_RENDERER_HOST_MEDIA_MIDI_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MIDI_DISPATCHER_HOST_H_
 
 #include "content/public/browser/browser_message_filter.h"
 
 class GURL;
@@ skipping 20 matching lines @@
  private:
   void OnRequestSysExPermission(int render_view_id,
                                 int bridge_id,
                                 const GURL& origin,
                                 bool user_gesture);
   void OnCancelSysExPermissionRequest(int render_view_id,
                                       int bridge_id,
                                       const GURL& requesting_frame);
   void WasSysExPermissionGranted(int render_view_id,
                                  int bridge_id,
-                                 bool success);
+                                 bool is_allowed);
 
   int render_process_id_;
   BrowserContext* browser_context_;
 
   DISALLOW_COPY_AND_ASSIGN(MidiDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MIDI_DISPATCHER_HOST_H_