Implement MIDIOutput.send()

Source/modules/webmidi/MIDIOutput.h

Index: Source/modules/webmidi/MIDIOutput.h
diff --git a/Source/modules/webmidi/MIDIOutput.h b/Source/modules/webmidi/MIDIOutput.h
index cecb98a724b7c4178bb95d9fe16ac1655c08f2f7..03c3c514fa8c79025927fbc17da0ca68edf44bb9 100644
--- a/Source/modules/webmidi/MIDIOutput.h
+++ b/Source/modules/webmidi/MIDIOutput.h
@@ -40,14 +40,17 @@ class ScriptExecutionContext;
 
 class MIDIOutput : public MIDIPort {
 public:
-    static PassRefPtr<MIDIOutput> create(ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, const String& version);
+    static PassRefPtr<MIDIOutput> create(MIDIAccess*, unsigned portIndex, ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, const String& version);
     virtual ~MIDIOutput() { }
 
     void send(Uint8Array*, double timestamp = 0);
     void send(Vector<unsigned>, double timestamp = 0);
 
 private:
-    MIDIOutput(ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, const String& version);
+    MIDIOutput(MIDIAccess*, unsigned portIndex, ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, const String& version);
+
+    RefPtr<MIDIAccess> m_access;
+    unsigned m_portIndex;
 };
 
 typedef Vector<RefPtr<MIDIOutput> > MIDIOutputVector;