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

chrome/browser/media/chrome_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_CHROME_MIDI_PERMISSION_CONTEXT_H_
-#define CHROME_BROWSER_MEDIA_CHROME_MIDI_PERMISSION_CONTEXT_H_
-
-#include "base/containers/scoped_ptr_hash_map.h"
-#include "base/memory/scoped_ptr.h"
-#include "components/keyed_service/core/keyed_service.h"
-#include "content/public/browser/browser_context.h"
-
-namespace content {
-class WebContents;
-}
-
-class GURL;
-class MidiPermissionRequest;
-class PermissionQueueController;
-class PermissionRequestID;
-class Profile;
-
-// This class manages MIDI permissions flow. Used on the UI thread.
-class ChromeMidiPermissionContext : public KeyedService {
- public:
-  explicit ChromeMidiPermissionContext(Profile* profile);
-  virtual ~ChromeMidiPermissionContext();
-
-  // KeyedService methods:
-  virtual void Shutdown() OVERRIDE;
-
-  // Request to ask users permission about MIDI.
-  void RequestMidiSysExPermission(
-      int render_process_id,
-      int render_view_id,
-      int bridge_id,
-      const GURL& requesting_frame,
-      bool user_gesture,
-      const content::BrowserContext::MidiSysExPermissionCallback& callback);
-
-  // Cancel a pending MIDI permission request.
-  void CancelMidiSysExPermissionRequest(int render_process_id,
-                                        int render_view_id,
-                                        int bridge_id,
-                                        const GURL& requesting_frame);
-
-  // 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 content::BrowserContext::MidiSysExPermissionCallback& callback,
-      bool allowed);
-
- private:
-  friend class MidiPermissionRequest;
-
-  // 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 content::BrowserContext::MidiSysExPermissionCallback& callback);
-
-  // Called when permission is granted without interactively asking the user.
-  void PermissionDecided(
-      const PermissionRequestID& id,
-      const GURL& requesting_frame,
-      const GURL& embedder,
-      const content::BrowserContext::MidiSysExPermissionCallback& 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_;
-
-  DISALLOW_COPY_AND_ASSIGN(ChromeMidiPermissionContext);
-};
-
-#endif  // CHROME_BROWSER_MEDIA_CHROME_MIDI_PERMISSION_CONTEXT_H_