Gender-neutralize a few more comments / strings.

components/omnibox/browser/shortcuts_provider.cc

Index: components/omnibox/browser/shortcuts_provider.cc
diff --git a/components/omnibox/browser/shortcuts_provider.cc b/components/omnibox/browser/shortcuts_provider.cc
index 5b405ac722ee016abe0413bd99ce2404abc66882..68f3ffcc1dfdb445c1b4f9810e1f991705fcc453 100644
--- a/components/omnibox/browser/shortcuts_provider.cc
+++ b/components/omnibox/browser/shortcuts_provider.cc
@@ -136,8 +136,8 @@ void ShortcutsProvider::DeleteMatch(const AutocompleteMatch& match) {
   GURL url(match.destination_url);
   DCHECK(url.is_valid());
 
-  // When a user deletes a match, he probably means for the URL to disappear out
-  // of history entirely. So nuke all shortcuts that map to this URL.
+  // When a user deletes a match, they probably mean for the URL to disappear
+  // out of history entirely. So nuke all shortcuts that map to this URL.
   scoped_refptr<ShortcutsBackend> backend =
       client_->GetShortcutsBackendIfExists();
   if (backend.get())  // Can be NULL in Incognito.