Move logic to show permission prompts into MediaStreamDevicesController

chrome/browser/media/webrtc/media_stream_devices_controller.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 CHROME_BROWSER_MEDIA_WEBRTC_MEDIA_STREAM_DEVICES_CONTROLLER_H_
 #define CHROME_BROWSER_MEDIA_WEBRTC_MEDIA_STREAM_DEVICES_CONTROLLER_H_
 
 #include <map>
 #include <string>
 
 #include "base/macros.h"
 #include "chrome/browser/permissions/permission_request.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "content/public/browser/web_contents_delegate.h"
 
 class Profile;
 class TabSpecificContentSettings;
 
 namespace content {
 class WebContents;
 }
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
+namespace policy {
+class MediaStreamDevicesControllerBrowserTest;
+}
+
 class MediaStreamDevicesController : public PermissionRequest {
  public:
-  MediaStreamDevicesController(content::WebContents* web_contents,
-                               const content::MediaStreamRequest& request,
-                               const content::MediaResponseCallback& callback);
-
-  ~MediaStreamDevicesController() override;
+  static void RequestPermissions(
+      content::WebContents* web_contents,
+      const content::MediaStreamRequest& request,
+      const content::MediaResponseCallback& callback);
 
   // Registers the prefs backing the audio and video policies.
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
-  bool IsAllowedForAudio() const;
-  bool IsAllowedForVideo() const;
+  ~MediaStreamDevicesController() override;
+
   bool IsAskingForAudio() const;
   bool IsAskingForVideo() const;
   base::string16 GetMessageText() const;
 
   // Forces the permissions to be denied (without being persisted) regardless
   // of what the previous state was.  If the user had previously allowed the
   // site video or audio access, this ignores that and informs the site it was
   // denied.
   //
   // This differs from PermissionGranted/PermissionDenied as they only operate
   // on the permissions if they are in the ASK state.
   void ForcePermissionDeniedTemporarily();
 
   bool ShouldShowPersistenceToggle() const override;
 
   // PermissionRequest:
   IconId GetIconId() const override;
   base::string16 GetMessageTextFragment() const override;
   GURL GetOrigin() const override;
   void PermissionGranted() override;
   void PermissionDenied() override;
   void Cancelled() override;
   void RequestFinished() override;
   PermissionRequestType GetPermissionRequestType() const override;
 
  private:
+  friend class MediaStreamDevicesControllerTest;
+  friend class policy::MediaStreamDevicesControllerBrowserTest;
+
+  MediaStreamDevicesController(content::WebContents* web_contents,
+                               const content::MediaStreamRequest& request,
+                               const content::MediaResponseCallback& callback);
+
+  bool IsAllowedForAudio() const;
+  bool IsAllowedForVideo() const;
+
   // Returns a list of devices available for the request for the given
   // audio/video permission settings.
   content::MediaStreamDevices GetDevices(ContentSetting audio_setting,
                                          ContentSetting video_setting);
 
   // Runs |callback_| with the given audio/video permission settings. If neither
   // |audio_setting| or |video_setting| is set to allow, |denial_reason| should
   // be set to the error to be reported when running |callback_|.
   void RunCallback(ContentSetting audio_setting,
                    ContentSetting video_setting,
@@ skipping 47 matching lines @@
   const content::MediaStreamRequest request_;
 
   // The callback that needs to be Run to notify WebRTC of whether access to
   // audio/video devices was granted or not.
   content::MediaResponseCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamDevicesController);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_WEBRTC_MEDIA_STREAM_DEVICES_CONTROLLER_H_