Cancel MIDI permission request infobar on MIDIAccess stop.

content/public/browser/browser_context.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_PUBLIC_BROWSER_BROWSER_CONTEXT_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_
 
 #include "base/callback_forward.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 114 matching lines @@
           const base::FilePath& partition_path,
           bool in_memory) = 0;
 
   typedef base::Callback<void(bool)> MIDISysExPermissionCallback;
 
   // Requests a permission to use system exclusive messages in MIDI events.
   // |callback| will be invoked when the request is resolved.
   virtual void RequestMIDISysExPermission(
       int render_process_id,
       int render_view_id,
+      int bridge_id,
       const GURL& requesting_frame,
       const MIDISysExPermissionCallback& callback) = 0;
 
+  // Cancels a pending MIDI permission request.
+  virtual void CancelMIDISysExPermissionRequest(
+      int render_process_id,
+      int render_view_id,
+      int bridge_id,
+      const GURL& requesting_frame) = 0;
+
   // Returns the resource context.
   virtual ResourceContext* GetResourceContext() = 0;
 
   // Returns the DownloadManagerDelegate for this context. This will be called
   // once per context. The embedder owns the delegate and is responsible for
   // ensuring that it outlives DownloadManager. It's valid to return NULL.
   virtual DownloadManagerDelegate* GetDownloadManagerDelegate() = 0;
 
   // Returns the geolocation permission context for this context. It's valid to
   // return NULL, in which case geolocation requests will always be allowed.
@@ skipping 12 matching lines @@
 struct hash<content::BrowserContext*> {
   std::size_t operator()(content::BrowserContext* const& p) const {
     return reinterpret_cast<std::size_t>(p);
   }
 };
 
 }  // namespace BASE_HASH_NAMESPACE
 #endif
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_CONTEXT_H_