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..824d4773709cbc48f05dc44c4911c7855cb0602d 100644
--- a/Source/modules/webmidi/MIDIOutput.h
+++ b/Source/modules/webmidi/MIDIOutput.h
@@ -32,22 +32,31 @@
 #define MIDIOutput_h
 
 #include "modules/webmidi/MIDIPort.h"
+#include "wtf/RefPtr.h"
 #include "wtf/Uint8Array.h"
 
 namespace WebCore {
 
+class MIDIAccess;
 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);
+    void send(Uint8Array*, double timestamp, ExceptionCode&);
+    void send(Vector<unsigned>, double timestamp, ExceptionCode&);
+
+    // send() without optional |timestamp|.
+    void send(Uint8Array*, ExceptionCode&);
+    void send(Vector<unsigned>, ExceptionCode&);
 
 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;