Gender-neutralize a few more comments / strings.

components/omnibox/browser/autocomplete_match.h

Index: components/omnibox/browser/autocomplete_match.h
diff --git a/components/omnibox/browser/autocomplete_match.h b/components/omnibox/browser/autocomplete_match.h
index d51e2ff2a961f653e4019d2da47ee43bfa3941ae..3333ce973d7d3934f528e4145462ea18fb002b5d 100644
--- a/components/omnibox/browser/autocomplete_match.h
+++ b/components/omnibox/browser/autocomplete_match.h
@@ -275,8 +275,8 @@ struct AutocompleteMatch {
   // input.  Note that rare or unusual types that could be considered verbatim,
   // such as keyword engine matches or extension-provided matches, aren't
   // detected by this IsVerbatimType, as the user will not be able to infer
-  // what will happen when he or she presses enter in those cases if the match
-  // is not shown.
+  // what will happen when they press enter in those cases if the match is not
+  // shown.
   bool IsVerbatimType() const;
 
   // Returns whether this match or any duplicate of this match can be deleted.