[Mac] Fix Omnibox decoration accessibility views in RTL

chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.mm

Index: chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.mm b/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.mm
index e09ee0d517737e9da1027f40134298b071d15dad..373f11db84c8a351f07e5f95be133ac9b0925588 100644
--- a/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.mm
+++ b/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.mm
@@ -159,9 +159,10 @@ size_t CalculatePositionsInFrame(
   // Flip all frames in RTL.
   if (cocoa_l10n_util::ShouldDoExperimentalRTLLayout()) {
     for (NSRect& rect : *decoration_frames)
-      rect.origin.x = NSWidth(frame) - NSWidth(rect) - NSMinX(rect);
-    text_frame->origin.x =
-        NSWidth(frame) - NSWidth(*text_frame) - NSMinX(*text_frame);
+      rect.origin.x =
+          NSMinX(frame) + NSMaxX(frame) - NSWidth(rect) - NSMinX(rect);
+    text_frame->origin.x = NSMinX(frame) + NSMaxX(frame) -
+                           NSWidth(*text_frame) - NSMinX(*text_frame);
     leading_count = decorations->size() - leading_count;
   }