Decouple MIDIAccess initialization from MIDIAccess class.

Source/web/MIDIClientProxy.cpp

Index: Source/web/MIDIClientProxy.cpp
diff --git a/Source/web/MIDIClientProxy.cpp b/Source/web/MIDIClientProxy.cpp
index 2a0e270750c6d46f42b558d09404d08274454ca7..faa8306e824cbc10a45b0d50328f9ec870f9c3df 100644
--- a/Source/web/MIDIClientProxy.cpp
+++ b/Source/web/MIDIClientProxy.cpp
@@ -31,12 +31,10 @@
 #include "config.h"
 #include "web/MIDIClientProxy.h"
 
-#include "modules/webmidi/MIDIAccess.h"
+#include "modules/webmidi/MIDIAccessInitializer.h"
 #include "public/web/WebMIDIClient.h"
 #include "public/web/WebMIDIPermissionRequest.h"
 
-using WebCore::MIDIAccess;
-
 namespace blink {
 
 MIDIClientProxy::MIDIClientProxy(WebMIDIClient* client)
@@ -44,18 +42,18 @@ MIDIClientProxy::MIDIClientProxy(WebMIDIClient* client)
 {
 }
 
-void MIDIClientProxy::requestSysexPermission(PassRefPtrWillBeRawPtr<MIDIAccess> access)
+void MIDIClientProxy::requestSysexPermission(WebCore::MIDIAccessInitializer* initializer)
 {
     if (m_client)
-        m_client->requestSysexPermission(WebMIDIPermissionRequest(access));
+        m_client->requestSysexPermission(WebMIDIPermissionRequest(initializer));
     else
-        access->setSysexEnabled(false);
+        initializer->setSysexEnabled(false);
 }
 
-void MIDIClientProxy::cancelSysexPermissionRequest(MIDIAccess* access)
+void MIDIClientProxy::cancelSysexPermissionRequest(WebCore::MIDIAccessInitializer* initializer)
 {
     if (m_client)
-        m_client->cancelSysexPermissionRequest(WebMIDIPermissionRequest(access));
+        m_client->cancelSysexPermissionRequest(WebMIDIPermissionRequest(initializer));
 }
 
 } // namespace blink