Web MIDI: chromium-side blink API update to support MIDIPortState

content/renderer/media/midi_message_filter.h

Index: content/renderer/media/midi_message_filter.h
diff --git a/content/renderer/media/midi_message_filter.h b/content/renderer/media/midi_message_filter.h
index 83e760abe53994088b6f2e64eb575ef77cecf47d..051f315f1f140ee2672bb86c5fcb7947cfac673c 100644
--- a/content/renderer/media/midi_message_filter.h
+++ b/content/renderer/media/midi_message_filter.h
@@ -44,6 +44,11 @@ class CONTENT_EXPORT MidiMessageFilter : public IPC::MessageFilter {
     return io_message_loop_;
   }
 
+  static blink::WebMIDIAccessorClient::MIDIPortState ToBlinkState(
+      media::MidiPortState state) {
+    return static_cast<blink::WebMIDIAccessorClient::MIDIPortState>(state);
+  }
+
  protected:
   ~MidiMessageFilter() override;