Remove Blink-WebKit-only document.createEvent strings

third_party/WebKit/Source/modules/webmidi/MIDIMessageEvent.h

Index: third_party/WebKit/Source/modules/webmidi/MIDIMessageEvent.h
diff --git a/third_party/WebKit/Source/modules/webmidi/MIDIMessageEvent.h b/third_party/WebKit/Source/modules/webmidi/MIDIMessageEvent.h
index dceb77c3202abac7eb0df286be7c808fc59e335b..7be592c5b77d9631032df748593f5e452e1a9964 100644
--- a/third_party/WebKit/Source/modules/webmidi/MIDIMessageEvent.h
+++ b/third_party/WebKit/Source/modules/webmidi/MIDIMessageEvent.h
@@ -42,11 +42,6 @@ class ExecutionContext;
 class MIDIMessageEvent final : public Event {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static MIDIMessageEvent* create()
-    {
-        return new MIDIMessageEvent();
-    }
-
     static MIDIMessageEvent* create(double receivedTime, DOMUint8Array* data)
     {
         return new MIDIMessageEvent(receivedTime, data);
@@ -69,9 +64,6 @@ public:
     }
 
 private:
-    MIDIMessageEvent()
-        : m_receivedTime(0) { }
-
     MIDIMessageEvent(double receivedTime, DOMUint8Array* data)
         : Event(EventTypeNames::midimessage, true, false)
         , m_receivedTime(receivedTime)