Add a policy list for access to capture devices

chrome/browser/media/media_stream_devices_controller.h

Index: chrome/browser/media/media_stream_devices_controller.h
diff --git a/chrome/browser/media/media_stream_devices_controller.h b/chrome/browser/media/media_stream_devices_controller.h
index 2468df767c4cade1de9b7e5cb36893dcddc1f58c..bfcf8557b22d830ae9b50836fd20391cd97a1cd4 100644
--- a/chrome/browser/media/media_stream_devices_controller.h
+++ b/chrome/browser/media/media_stream_devices_controller.h
@@ -28,6 +28,10 @@ class MediaStreamDevicesController {
 
   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);
 
@@ -52,7 +56,8 @@ class MediaStreamDevicesController {
 
   // 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.