Local NTP, Realbox: fix search and clock icons in RTL

Fixed: 1016657
Change-Id: I9df9b7fcd524643bc9b7d3f78e646d21496b5e61
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1873963
Auto-Submit: Dan Beam <dbeam@chromium.org>
Reviewed-by: Moe Ahmadi <mahmadi@chromium.org>
Commit-Queue: Dan Beam <dbeam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708343}

chrome/browser/resources/local_ntp/local_ntp.css

@@ -264,7 +264,7 @@ body.hide-fakebox #fakebox {
   -webkit-mask-size: 20px;
 }
 
-html[dir=rtl] #realbox-matches :-webkit-any(.clock-icon, .search-icon) {
+html[dir=rtl] :-webkit-any(.clock-icon, .search-icon) {
   right: 16px;
 }