Ensure we do not try to create a swapchain with dimensions smaller than 1x1.

TRAC #22548

Signed-off-by: Geoff Lang
Signed-off-by: Nicolas Capens
Author: Jamie Madill

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1889 736b8ea6-26fd-11df-bfd4-992fa37f6226
2 files changed