Sync parserTests with core.
This matches upstream core commit e51fe526290f9a99ab3acd3305311b94a327a4a3.
Upstream landed a urlencoding tweak
(I01556eee496e2fb540de8ff09c082c1fedddb5f7) which necessitated a sync.
Change-Id: I18813035a694f6febd9349930573d9ebd7fdd687