Enable the optional permission prompt persistence toggle on grouped infobars

chrome/browser/media/webrtc/media_stream_devices_controller.h

Index: chrome/browser/media/webrtc/media_stream_devices_controller.h
diff --git a/chrome/browser/media/webrtc/media_stream_devices_controller.h b/chrome/browser/media/webrtc/media_stream_devices_controller.h
index 1b4246aec67d41fb81c17d15b6ba8e53faefeddf..c64693645d851b129f2278f759d7e4f64fa70aa6 100644
--- a/chrome/browser/media/webrtc/media_stream_devices_controller.h
+++ b/chrome/browser/media/webrtc/media_stream_devices_controller.h
@@ -11,6 +11,7 @@
 #include "base/macros.h"
 #include "chrome/browser/permissions/permission_request.h"
 #include "components/content_settings/core/common/content_settings.h"
+#include "content/public/browser/permission_type.h"
 #include "content/public/browser/web_contents_delegate.h"
 
 class Profile;
@@ -41,6 +42,11 @@ class MediaStreamDevicesController : public PermissionRequest {
   bool IsAskingForVideo() const;
   base::string16 GetMessageText() const;
 
+  // Returns the PermissionsType associated with the provided
+  // ContentSettingsType. |content_type| must be a media stream type.
+  content::PermissionType GetPermissionTypeForContentSettingsType(
+      ContentSettingsType content_type) 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
@@ -57,6 +63,9 @@ class MediaStreamDevicesController : public PermissionRequest {
   // PermissionRequest instead of a custom infobar delegate.
   void GroupedRequestFinished(bool audio_accepted, bool video_accepted);
 
+  bool persist() const { return persist_; }
+  void set_persist(bool persist) { persist_ = persist; }
+
   // PermissionRequest:
   int GetIconId() const override;
   base::string16 GetMessageTextFragment() const override;
@@ -132,7 +141,7 @@ class MediaStreamDevicesController : public PermissionRequest {
   content::MediaResponseCallback callback_;
 
   // Whether the permissions granted or denied by the user should be persisted.
-  bool persist_permission_changes_;
+  bool persist_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamDevicesController);
 };