Remove unused PermissionRequestType::MEDIA_STREAM/UNUSED_PERMISSION

Change-Id: I219a0dfc48e834e55b35e376378fd3775fff6ee0
Reviewed-on: https://chromium-review.googlesource.com/821331
Reviewed-by: Raymes Khoury <[email protected]>
Commit-Queue: Timothy Loh <[email protected]>
Cr-Commit-Position: refs/heads/master@{#523355}
diff --git a/chrome/browser/permissions/permission_request.h b/chrome/browser/permissions/permission_request.h
index 06509ec..f4473c3f 100644
--- a/chrome/browser/permissions/permission_request.h
+++ b/chrome/browser/permissions/permission_request.h
@@ -24,10 +24,10 @@
 enum class PermissionRequestType {
   UNKNOWN = 0,
   MULTIPLE = 1,
-  UNUSED_PERMISSION = 2,
+  // UNUSED_PERMISSION = 2,
   QUOTA = 3,
   DOWNLOAD = 4,
-  MEDIA_STREAM = 5,
+  // MEDIA_STREAM = 5,
   REGISTER_PROTOCOL_HANDLER = 6,
   PERMISSION_GEOLOCATION = 7,
   PERMISSION_MIDI_SYSEX = 8,