Generate GLES30 class, just a clone of GLES20 for now

Bug: 8566953
Change-Id: I6fad880344b9c247de4018711ea7cb6eb1a609d6
diff --git a/opengl/tools/glgen/src/GenerateGLES.java b/opengl/tools/glgen/src/GenerateGLES.java
index 6f9da5d..c99c45d 100644
--- a/opengl/tools/glgen/src/GenerateGLES.java
+++ b/opengl/tools/glgen/src/GenerateGLES.java
@@ -84,7 +84,7 @@
 
         // Generate files
         for(String suffix: new String[] {"GLES10", "GLES10Ext",
-                "GLES11", "GLES11Ext", "GLES20"})
+                "GLES11", "GLES11Ext", "GLES20", "GLES30"})
         {
             BufferedReader spec11Reader =
                 new BufferedReader(new FileReader("specs/gles11/"