Ensure ShaderBinary is conformant

TRAC #12061

Signed-off-by: Shannon Woods
Signed-off-by: Daniel Koch

Author:    Andrew Lewycky

git-svn-id: https://angleproject.googlecode.com/svn/trunk@211 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/libGLESv2/libGLESv2.cpp b/src/libGLESv2/libGLESv2.cpp
index 46946eb..5b1ab7b 100644
--- a/src/libGLESv2/libGLESv2.cpp
+++ b/src/libGLESv2/libGLESv2.cpp
@@ -3646,12 +3646,8 @@
 
     try
     {
-        if (n < 0 || length < 0)
-        {
-            return error(GL_INVALID_VALUE);
-        }
-
-        UNIMPLEMENTED();   // FIXME
+        // No binary shader formats are supported.
+        return error(GL_INVALID_ENUM);
     }
     catch(std::bad_alloc&)
     {