Add a policy list for access to capture devices

chrome/browser/media/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_MEDIA_STREAM_DEVICES_CONTROLLER_H_
 #define CHROME_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_
 
 #include <string>
 
 #include "content/public/browser/web_contents_delegate.h"
@@ skipping 10 matching lines @@
 }
 
 class MediaStreamDevicesController {
  public:
   MediaStreamDevicesController(content::WebContents* web_contents,
                                const content::MediaStreamRequest& request,
                                const content::MediaResponseCallback& callback);
 
   virtual ~MediaStreamDevicesController();
 
+  // TODO(tommi): Clean up all the policy code and integrate with
+  // HostContentSettingsMap instead.  This will make creating the UI simpler
+  // and the code cleaner.  crbug.com/244389.
+
   // Registers the prefs backing the audio and video policies.
   static void RegisterUserPrefs(user_prefs::PrefRegistrySyncable* registry);
 
   // Public method to be called before creating the MediaStreamInfoBarDelegate.
   // This function will check the content settings exceptions and take the
   // corresponding action on exception which matches the request.
   bool DismissInfoBarAndTakeActionOnSettings();
 
   // Public methods to be called by MediaStreamInfoBarDelegate;
   bool has_audio() const { return microphone_requested_; }
   bool has_video() const { return webcam_requested_; }
   const std::string& GetSecurityOriginSpec() const;
   void Accept(bool update_content_setting);
   void Deny(bool update_content_setting);
 
  private:
   enum DevicePolicy {
     POLICY_NOT_SET,
     ALWAYS_DENY,
     ALWAYS_ALLOW,
   };
 
   // Called by GetAudioDevicePolicy and GetVideoDevicePolicy to check
   // the currently set capture device policy.
-  DevicePolicy GetDevicePolicy(const char* policy_name) const;
+  DevicePolicy GetDevicePolicy(const char* policy_name,
+                               const char* whitelist_policy_name) const;
 
   // Returns true if the origin of the request has been granted the media
   // access before, otherwise returns false.
   bool IsRequestAllowedByDefault() const;
 
   // Returns true if the media access for the origin of the request has been
   // blocked before. Otherwise returns false.
   bool IsRequestBlockedByDefault() const;
 
   // Returns true if the media section in content settings is set to
@@ skipping 30 matching lines @@
   // audio/video devices was granted or not.
   content::MediaResponseCallback callback_;
 
   bool microphone_requested_;
   bool webcam_requested_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamDevicesController);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_