Shunt more code to StateManager11. Previously the Renderer11 would call directly into the state manager sync methods. Instead make a single updateState method, and make several state sync methods private to the manager. Also rename them to clarify they're for syncing state, not for direct use. BUG=angleproject:1156 Change-Id: I94880a744e7ade3895fa2a312a2436ba4ef38dba Reviewed-on: https://chromium-review.googlesource.com/529705 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>