Advertise depthbuffer-less surface configs.

TRAC #16493
Signed-off-by: Daniel Koch
Author: Nicolas Capens

git-svn-id: https://angleproject.googlecode.com/svn/trunk@617 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libEGL/Config.cpp b/src/libEGL/Config.cpp
index 4177962..e4dc704 100644
--- a/src/libEGL/Config.cpp
+++ b/src/libEGL/Config.cpp
@@ -118,6 +118,10 @@
 
     switch (depthStencilFormat)
     {
+      case D3DFMT_UNKNOWN:
+        mDepthSize = 0;
+        mStencilSize = 0;
+        break;
 //    case D3DFMT_D16_LOCKABLE:
 //      mDepthSize = 16;
 //      mStencilSize = 0;