Change MediaStreamDevicesController tests to use RequestPermissions function

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>
 
@@ skipping 51 matching lines @@
   void PermissionGranted() override;
   void PermissionDenied() override;
   void Cancelled() override;
   void RequestFinished() override;
   PermissionRequestType GetPermissionRequestType() const override;
 
  private:
   friend class MediaStreamDevicesControllerTest;
   friend class policy::MediaStreamDevicesControllerBrowserTest;
 
+  // Delegate showing permission prompts.
+  class PermissionPromptDelegate {
+   public:
+    virtual void ShowPrompt(
+        bool user_gesture,
+        content::WebContents* web_contents,
+        std::unique_ptr<MediaStreamDevicesController> controller) = 0;
+  };
+
+  class PermissionPromptDelegateImpl;
+
+  static void RequestPermissionsWithDelegate(
+      content::WebContents* web_contents,
+      const content::MediaStreamRequest& request,
+      const content::MediaResponseCallback& callback,
+      PermissionPromptDelegate* delegate);
+
   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,
@@ skipping 50 matching lines @@
   // was created.
   TabSpecificContentSettings* content_settings_;
 
   // The original request for access to devices.
   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_;
 
+  std::unique_ptr<PermissionPromptDelegate> delegate_;
+
   DISALLOW_COPY_AND_ASSIGN(MediaStreamDevicesController);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_WEBRTC_MEDIA_STREAM_DEVICES_CONTROLLER_H_