Moves creation of renderer-specific texture storage objects to the renderer.

TRAC #22300

Author: Shannon Woods
Signed-off-by: Geoff Lang
Signed-off-by: Daniel Koch

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1614 736b8ea6-26fd-11df-bfd4-992fa37f6226
6 files changed