Remove unused PermissionAction::(REENABLED/REQUESTED)

The enums PermissionAction::REENABLED and PermissionAction::REQUESTED
don't seem to have ever been used, so this patch removes them.

TBR=nparker

Bug: 638076
Change-Id: Iadcbc6f44a8c33233b702287167baef56c807699
Reviewed-on: https://chromium-review.googlesource.com/867794
Commit-Queue: Timothy Loh <timloh@chromium.org>
Reviewed-by: Nathan Parker <nparker@chromium.org>
Reviewed-by: Raymes Khoury <raymes@chromium.org>
Cr-Commit-Position: refs/heads/master@{#531822}

chrome/browser/permissions/permission_util.h

@@ -28,8 +28,6 @@ enum class PermissionAction {
   DISMISSED = 2,
   IGNORED = 3,
   REVOKED = 4,
-  REENABLED = 5,
-  REQUESTED = 6,
 
   // Always keep this at the end.
   NUM,

chrome/browser/safe_browsing/permission_reporter.cc

@@ -69,9 +69,6 @@ PermissionReport::Action PermissionActionForReport(PermissionAction action) {
       return PermissionReport::IGNORED;
     case PermissionAction::REVOKED:
       return PermissionReport::REVOKED;
-    case PermissionAction::REENABLED:
-    case PermissionAction::REQUESTED:
-      return PermissionReport::ACTION_UNSPECIFIED;
     case PermissionAction::NUM:
       break;
   }