Web MIDI: make MidiManagerMac notify device connections

content/browser/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_MEDIA_MIDI_HOST_H_
 #define CONTENT_BROWSER_MEDIA_MIDI_HOST_H_
 
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/synchronization/lock.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "content/public/browser/browser_thread.h"
 #include "media/midi/midi_manager.h"
+#include "media/midi/midi_port_info.h"
 
 namespace media {
 class MidiManager;
 class MidiMessageQueue;
 }
 
 namespace content {
 
 class CONTENT_EXPORT MidiHost
     : public BrowserMessageFilter,
       public media::MidiManagerClient {
  public:
   // Called from UI thread from the owner of this object.
   MidiHost(int renderer_process_id, media::MidiManager* midi_manager);
 
   // BrowserMessageFilter implementation.
   void OnDestruct() const override;
   bool OnMessageReceived(const IPC::Message& message) override;
 
   // MidiManagerClient implementation.
   void CompleteStartSession(media::MidiResult result) override;
   void AddInputPort(const media::MidiPortInfo& info) override;
   void AddOutputPort(const media::MidiPortInfo& info) override;
+  void SetInputPortState(uint32 port, media::MidiPortState state) override;
+  void SetOutputPortState(uint32 port, media::MidiPortState state) override;
   void ReceiveMidiData(uint32 port,
                        const uint8* data,
                        size_t length,
                        double timestamp) override;
   void AccumulateMidiBytesSent(size_t n) override;
 
   // Start session to access MIDI hardware.
   void OnStartSession();
 
   // Data to be sent to a MIDI output port.
@@ skipping 49 matching lines @@
 
   // Protects access to |sent_bytes_in_flight_|.
   base::Lock in_flight_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(MidiHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_MIDI_HOST_H_