Web MIDI: implement MIDIOutput

Source/modules/webmidi/MIDIOutput.h

Index: Source/modules/webmidi/MIDIOutput.h
diff --git a/Source/modules/webmidi/MIDIErrorCallback.h b/Source/modules/webmidi/MIDIOutput.h
similarity index 71%
copy from Source/modules/webmidi/MIDIErrorCallback.h
copy to Source/modules/webmidi/MIDIOutput.h
index 3a0e41edbee99b7c447866ce544afa475c131c10..047452b222d0cd1c5485fb97e499552ae0c3d279 100644
--- a/Source/modules/webmidi/MIDIErrorCallback.h
+++ b/Source/modules/webmidi/MIDIOutput.h
@@ -28,26 +28,30 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef MIDIErrorCallback_h
-#define MIDIErrorCallback_h
+#ifndef MIDIOutput_h
+#define MIDIOutput_h
 
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
+#include "modules/webmidi/MIDIPort.h"
 
 namespace WebCore {
 
-class DOMError;
 class ScriptExecutionContext;
+class Uint8Array;
 
-class MIDIErrorCallback : public RefCounted<MIDIErrorCallback> {
+class MIDIOutput : public MIDIPort {
 public:
-    virtual ~MIDIErrorCallback() { }
-    virtual bool handleEvent(DOMError*) = 0;
 
-    // Helper to post callback task.
-    void scheduleCallback(ScriptExecutionContext*, PassRefPtr<DOMError>);
+    virtual ~MIDIOutput() { }
+    static PassRefPtr<MIDIOutput> create(ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, const String& version);
+    static PassRefPtr<MIDIOutput> create(PassRefPtr<MIDIPort>);

[Chris Rogers, 2013/04/29 19:24:19]

Will this create() method be necessary?  You have a better idea of where it
would be called from, just curious...

[Takashi Toyoshima, 2013/05/02 09:14:08]

I'll remove this due to the same reason of MIDIInput.

+
+    void send(Uint8Array*, double timestamp = 0);
+    void send(Vector<unsigned int>, double timestamp = 0);
+
+private:
+    MIDIOutput(ScriptExecutionContext*, const String& id, const String& manufacturer, const String& name, const String& version);
 };
 
 } // namespace WebCore
 
-#endif // MIDIErrorCallback_h
+#endif // MIDIOutput_h