Make WebMIDI use blink Promise.

Source/modules/webmidi/MIDIAccess.h

Index: Source/modules/webmidi/MIDIAccess.h
diff --git a/Source/modules/webmidi/MIDIAccess.h b/Source/modules/webmidi/MIDIAccess.h
index 9e02f95f8c57f0f554134b6a391cb17aa4529178..83427daf232399dad183b6b17f9f8f5ebdeb8a88 100644
--- a/Source/modules/webmidi/MIDIAccess.h
+++ b/Source/modules/webmidi/MIDIAccess.h
@@ -31,6 +31,9 @@
 #ifndef MIDIAccess_h
 #define MIDIAccess_h
 
+#include "bindings/v8/DOMWrapperWorld.h"
+#include "bindings/v8/ScriptPromise.h"
+#include "bindings/v8/ScriptPromiseResolver.h"
 #include "bindings/v8/ScriptWrappable.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "core/events/EventTarget.h"
@@ -38,6 +41,7 @@
 #include "modules/webmidi/MIDIAccessor.h"
 #include "modules/webmidi/MIDIAccessorClient.h"
 #include "modules/webmidi/MIDIInput.h"
+#include "modules/webmidi/MIDIOptions.h"
 #include "modules/webmidi/MIDIOutput.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
@@ -46,14 +50,13 @@
 namespace WebCore {
 
 class ExecutionContext;
-class MIDIAccessPromise;
 
 class MIDIAccess FINAL : public RefCountedWillBeRefCountedGarbageCollected<MIDIAccess>, public ScriptWrappable, public ActiveDOMObject, public EventTargetWithInlineData, public MIDIAccessorClient {
     DECLARE_GC_INFO;
     DEFINE_EVENT_TARGET_REFCOUNTING(RefCountedWillBeRefCountedGarbageCollected<MIDIAccess>);
 public:
     virtual ~MIDIAccess();
-    static PassRefPtrWillBeRawPtr<MIDIAccess> create(ExecutionContext*, MIDIAccessPromise*);
+    static PassRefPtrWillBeRawPtr<MIDIAccess> create(const MIDIOptions&, ExecutionContext*);
 
     MIDIInputVector inputs() const { return m_inputs; }
     MIDIOutputVector outputs() const { return m_outputs; }
@@ -81,18 +84,25 @@ public:
     void sendMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStampInMilliseconds);
 
     void trace(Visitor*);
+    ScriptPromise startRequest();
 
 private:
-    MIDIAccess(ExecutionContext*, MIDIAccessPromise*);
+    MIDIAccess(const MIDIOptions&, ExecutionContext*);
 
-    void startRequest();
     void permissionDenied();
 
+    // This method can delete |this| object.
+    void resolve();
+    // This method can delete |this| object.
+    void reject(PassRefPtr<DOMError>);
+
     MIDIInputVector m_inputs;
     MIDIOutputVector m_outputs;
-    RawPtrWillBeMember<MIDIAccessPromise> m_promise;
 
     OwnPtr<MIDIAccessor> m_accessor;
+    RefPtr<DOMWrapperWorld> m_world;
+    RefPtr<ScriptPromiseResolver> m_resolver;
+    MIDIOptions m_options;
     bool m_hasAccess;
     bool m_sysExEnabled;
     bool m_requesting;