Added a swizzle cache to TextureStorage11. Change-Id: Iebf297ef5b8560bb468428fc369eb3df8f43ec11 Reviewed-on: https://chromium-review.googlesource.com/177032 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>