Reland: Web MIDI: use mojom::blink::PermissionService directly to ask permission

third_party/WebKit/public/web/WebFrameClient.h

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 71 matching lines @@
 class WebExternalPopupMenuClient;
 class WebFileChooserCompletion;
 class WebFormElement;
 class WebInstalledAppClient;
 class WebMediaPlayer;
 class WebMediaPlayerClient;
 class WebMediaPlayerEncryptedMediaClient;
 class WebMediaPlayerSource;
 class WebMediaSession;
 class WebMediaStream;
-class WebMIDIClient;
 class WebNotificationPermissionCallback;
 class WebPermissionClient;
 class WebServiceWorkerProvider;
 class WebSocketHandle;
 class WebPlugin;
 class WebPresentationClient;
 class WebPushClient;
 class WebRTCPeerConnectionHandler;
 class WebScreenOrientationClient;
 class WebString;
@@ skipping 483 matching lines @@
     virtual void willStartUsingPeerConnectionHandler(WebRTCPeerConnectionHandler*) { }
 
     virtual WebUserMediaClient* userMediaClient() { return 0; }
 
 
     // Encrypted Media -------------------------------------------------
 
     virtual WebEncryptedMediaClient* encryptedMediaClient() { return 0; }
 
 
-    // Web MIDI -------------------------------------------------------------
-
-    virtual WebMIDIClient* webMIDIClient() { return 0; }
-
     // User agent ------------------------------------------------------
 
     // Asks the embedder if a specific user agent should be used. Non-empty
     // strings indicate an override should be used. Otherwise,
     // Platform::current()->userAgent() will be called to provide one.
     virtual WebString userAgentOverride() { return WebString(); }
 
     // Do not track ----------------------------------------------------
 
     // Asks the embedder what value the network stack will send for the DNT
@@ skipping 117 matching lines @@
         return WebPageVisibilityStateVisible;
     }
 
 protected:
     virtual ~WebFrameClient() { }
 };
 
 } // namespace blink
 
 #endif