Plumbed in discard_framebuffer extension

src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp

Index: src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp
===================================================================
--- src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp	(revision 8892)
+++ src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp	(working copy)
@@ -149,6 +149,9 @@
             GET_PROC_SUFFIX(TexStorage2D, EXT);
         }
         GET_PROC(TexSubImage2D);
+        if (extensions.has("GL_EXT_discard_framebuffer")) {

[bsalomon, 2013/04/29 14:42:15]

Does this extension exist on desktop? If not we can just leave all the desktop
GrGLInterface setup functions alone.

[robertphillips, 2013/04/29 15:25:39]

As far as I can tell (from looking at the spec and registry) it does not.

+            GET_PROC_SUFFIX(DiscardFramebuffer, EXT);
+        }
         GET_PROC(Uniform1f);
         GET_PROC(Uniform1i);
         GET_PROC(Uniform1fv);