tree f7bef8d499a5611bb4c3c70f94f2604d881d7c64
parent db186c0739d4e33e4d4c2e1cf3aff6fa26f6c21b
author Tobin Ehlis <tobin@lunarg.com> 1426631072 -0600
committer Tobin Ehlis <tobin@lunarg.com> 1427322079 -0600

layers: Migrated DrawState layer to cpp

Move almost all linked-lists to unordered_maps and vectors.
Clean up malloc/free with new/delete.
Skip write-strings compile warnings for graphviz_helper.

Still need to migrate the DS update tree to c++.