Convert MIDI permission requests to use WebContents in preparation for switching the code to using …

content/browser/web_contents/web_contents_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 32 matching lines @@
 
 namespace content {
 class BrowserPluginEmbedder;
 class BrowserPluginGuest;
 class BrowserPluginGuestManager;
 class DateTimeChooserAndroid;
 class DownloadItem;
 class GeolocationDispatcherHost;
 class InterstitialPageImpl;
 class JavaScriptDialogManager;
+class MidiDispatcherHost;
 class PowerSaveBlocker;
 class RenderViewHost;
 class RenderViewHostDelegateView;
 class RenderViewHostImpl;
 class RenderWidgetHostImpl;
 class SavePackage;
 class SiteInstance;
 class TestWebContents;
 class WebContentsDelegate;
 class WebContentsImpl;
@@ skipping 1061 matching lines @@
   bool is_subframe_;
 
   // Whether touch emulation is enabled in RenderWidgetHost.
   bool touch_emulation_enabled_;
 
   // Whether the last JavaScript dialog shown was suppressed. Used for testing.
   bool last_dialog_suppressed_;
 
   scoped_ptr<GeolocationDispatcherHost> geolocation_dispatcher_host_;
 
+  scoped_ptr<MidiDispatcherHost> midi_dispatcher_host_;
+
   DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_