Enable MRT support by exposing glDrawBuffersEXT to the application.

TRAC #22710

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

git-svn-id: https://angleproject.googlecode.com/svn/branches/es3proto@2098 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/libGLESv2.cpp b/src/libGLESv2/libGLESv2.cpp
index 451d72c..aadc898 100644
--- a/src/libGLESv2/libGLESv2.cpp
+++ b/src/libGLESv2/libGLESv2.cpp
@@ -9663,6 +9663,7 @@
         {"glEndQueryEXT", (__eglMustCastToProperFunctionPointerType)glEndQueryEXT},
         {"glGetQueryivEXT", (__eglMustCastToProperFunctionPointerType)glGetQueryivEXT},
         {"glGetQueryObjectuivEXT", (__eglMustCastToProperFunctionPointerType)glGetQueryObjectuivEXT},
+        {"glDrawBuffersEXT", (__eglMustCastToProperFunctionPointerType)glDrawBuffersEXT},
         {"glVertexAttribDivisorANGLE", (__eglMustCastToProperFunctionPointerType)glVertexAttribDivisorANGLE},
         {"glDrawArraysInstancedANGLE", (__eglMustCastToProperFunctionPointerType)glDrawArraysInstancedANGLE},
         {"glDrawElementsInstancedANGLE", (__eglMustCastToProperFunctionPointerType)glDrawElementsInstancedANGLE},