Implement midi permissions on top of the new common permission classes

chrome/browser/media/midi_permission_context.h

 // Copyright 2013 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 CHROME_BROWSER_MEDIA_MIDI_PERMISSION_CONTEXT_H_
 #define CHROME_BROWSER_MEDIA_MIDI_PERMISSION_CONTEXT_H_
 
-#include "base/containers/scoped_ptr_hash_map.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/memory/weak_ptr.h"
-#include "components/keyed_service/core/keyed_service.h"
-
-namespace content {
-class WebContents;
-}
+#include "chrome/browser/content_settings/permission_context_base.h"
 
 class GURL;
-class MidiPermissionRequest;
-class PermissionQueueController;
 class PermissionRequestID;
-class Profile;
 
-// This class manages MIDI permissions flow. Used on the UI thread.
-class MidiPermissionContext : public KeyedService {
+class MidiPermissionContext : public PermissionContextBase {
  public:
   explicit MidiPermissionContext(Profile* profile);
   virtual ~MidiPermissionContext();
 
-  // KeyedService methods:
-  virtual void Shutdown() OVERRIDE;
+ private:
 
-  // Request to ask users permission about MIDI.
-  void RequestMidiSysExPermission(
-      content::WebContents* web_contents,
-      int bridge_id,
-      const GURL& requesting_frame,
-      bool user_gesture,
-      const base::Callback<void(bool)>& result_callback,
-      base::Closure* cancel_callback);
-
-  // Called when the permission decision is made. If a permissions prompt is
-  // shown to the user it will be called when the user selects an option
-  // from that prompt.
-  void NotifyPermissionSet(
-      const PermissionRequestID& id,
-      const GURL& requesting_frame,
-      const base::Callback<void(bool)>& callback,
-      bool allowed);
-
- private:
-  friend class MidiPermissionRequest;
-
-  // Cancel a pending MIDI permission request.
-  void CancelMidiSysExPermissionRequest(int render_process_id,
-                                        int render_view_id,
-                                        int bridge_id);
-
-  // Decide whether the permission should be granted.
-  // Calls PermissionDecided if permission can be decided non-interactively,
-  // or NotifyPermissionSet if permission decided by presenting an infobar.
-  void DecidePermission(
-      content::WebContents* web_contents,
-      const PermissionRequestID& id,
-      const GURL& requesting_frame,
-      const GURL& embedder,
-      bool user_gesture,
-      const base::Callback<void(bool)>& callback);
-
-  // Called when permission is granted without interactively asking the user.
-  void PermissionDecided(
-      const PermissionRequestID& id,
-      const GURL& requesting_frame,
-      const GURL& embedder,
-      const base::Callback<void(bool)>& callback,
-      bool allowed);
-
-  // Return an instance of the infobar queue controller, creating it if needed.
-  PermissionQueueController* GetQueueController();
-
-  // Removes any pending InfoBar request.
-  void CancelPendingInfobarRequest(const PermissionRequestID& id);
-
-  // Notify the context that a particular request object is no longer needed.
-  void RequestFinished(MidiPermissionRequest* request);
-
-  Profile* const profile_;
-  bool shutting_down_;
-  scoped_ptr<PermissionQueueController> permission_queue_controller_;
-
-  base::ScopedPtrHashMap<std::string, MidiPermissionRequest> pending_requests_;
-
-  base::WeakPtrFactory<MidiPermissionContext> weak_factory_;
+  // PermissionContextBase:
+  virtual void UpdateTabContext(const PermissionRequestID& id,
+                                const GURL& requesting_frame,
+                                bool allowed) OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(MidiPermissionContext);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_MIDI_PERMISSION_CONTEXT_H_