Support socket endpoint permissions for AppsV2 Socket API.

chrome/browser/extensions/extension_prefs_unittest.cc

Index: chrome/browser/extensions/extension_prefs_unittest.cc
diff --git a/chrome/browser/extensions/extension_prefs_unittest.cc b/chrome/browser/extensions/extension_prefs_unittest.cc
index 9548234834c7baccd463d369977b5da34c4d07cd..062887a6f3d2667a5a33253e28cbb5bbf1303ead 100644
--- a/chrome/browser/extensions/extension_prefs_unittest.cc
+++ b/chrome/browser/extensions/extension_prefs_unittest.cc
@@ -254,9 +254,7 @@ class ExtensionPrefsGrantedPermissions : public ExtensionPrefsTest {
     permissions = new PermissionSet(
         api_perm_set2_, ehost_perm_set2_, shost_perm_set2_);
 
-    std::set_union(expected_apis.begin(), expected_apis.end(),
-                   api_perm_set2_.begin(), api_perm_set2_.end(),
-                   std::inserter(api_permissions_, api_permissions_.begin()));
+    APIPermissionSet::Union(expected_apis, api_perm_set2_, &api_permissions_);
 
     prefs()->AddGrantedPermissions(extension_id_, permissions.get());
     granted_permissions = prefs()->GetGrantedPermissions(extension_id_);