Add "interactive" UI integration tests for PermissionRequestManager.

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 10 matching lines @@
 }
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 namespace policy {
 class MediaStreamDevicesControllerBrowserTest;
 }
 
+namespace test {
+class MediaStreamDevicesControllerTestApi;
+}
+
 class MediaStreamDevicesController : public PermissionRequest {
  public:
   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);
 
@@ skipping 19 matching lines @@
   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 test::MediaStreamDevicesControllerTestApi;
   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;
   };
@@ skipping 79 matching lines @@
   // 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_