Web MIDI: prepare to pass a security origin from blink to browser

content/browser/renderer_host/media/midi_host.h

 // Copyright (c) 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_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_MIDI_HOST_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.h"
@@ skipping 21 matching lines @@
                                  bool* message_was_ok) OVERRIDE;
 
   // MIDIManagerClient implementation.
   virtual void ReceiveMIDIData(
       int port_index,
       const uint8* data,
       size_t length,
       double timestamp) OVERRIDE;
 
   // Request access to MIDI hardware.
-  void OnRequestAccess(int client_id, int access);
+  void OnRequestAccess(const std::string& origin, int client_id, int access);
 
   // Data to be sent to a MIDI output port.
   void OnSendData(int port,
                   const std::vector<uint8>& data,
                   double timestamp);
 
  private:
   friend class base::DeleteHelper<MIDIHost>;
   friend class BrowserThread;
 
   virtual ~MIDIHost();
 
   media::MIDIManager* const midi_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(MIDIHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MIDI_HOST_H_