Add support for more depth buffer formats in our EGLConfigs.

This includes no depth buffer and 16-bit depth buffer with no stencil buffer.

TRAC #22496

Signed-off-by: Geoff Lang
Signed-off-by: Shannon Woods
Author: Jamie Madill

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1851 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/renderer/renderer11_utils.h b/src/libGLESv2/renderer/renderer11_utils.h
index c543d37..f087843 100644
--- a/src/libGLESv2/renderer/renderer11_utils.h
+++ b/src/libGLESv2/renderer/renderer11_utils.h
@@ -68,6 +68,7 @@
 size_t ComputePixelSizeBits(DXGI_FORMAT format);
 size_t ComputeBlockSizeBits(DXGI_FORMAT format);
 
+bool IsDepthStencilFormat(DXGI_FORMAT format);
 HRESULT SetDebugName(ID3D11DeviceChild *resource, const char *name);
 }