Gender-neutralize a few more comments / strings.

components/omnibox/browser/omnibox_edit_model.cc

Index: components/omnibox/browser/omnibox_edit_model.cc
diff --git a/components/omnibox/browser/omnibox_edit_model.cc b/components/omnibox/browser/omnibox_edit_model.cc
index 72ce84b2575d7fe108ea8c9a41587d79694e1e2c..1f25dbaa3f99d3891530bfda9d5dda85f8f255ea 100644
--- a/components/omnibox/browser/omnibox_edit_model.cc
+++ b/components/omnibox/browser/omnibox_edit_model.cc
@@ -563,7 +563,7 @@ void OmniboxEditModel::AcceptInput(WindowOpenDisposition disposition,
   GURL alternate_nav_url;
   AutocompleteMatch match = CurrentMatch(&alternate_nav_url);
 
-  // If CTRL is down it means the user wants to append ".com" to the text he
+  // If CTRL is down it means the user wants to append ".com" to the text they
   // typed. If we can successfully generate a URL_WHAT_YOU_TYPED match doing
   // that, then we use this. These matches are marked as generated by the
   // HistoryURLProvider so we only generate them if this provider is present.