Manually fix GLES headers

Apply the Khronos proposed fix to the GLES headers

Bug 26832318

Change-Id: I3f476d4b8dc4e1819afb9e791da178417e5cb427
diff --git a/opengl/include/GLES3/gl3.h b/opengl/include/GLES3/gl3.h
index 383230f..d51d2e6 100644
--- a/opengl/include/GLES3/gl3.h
+++ b/opengl/include/GLES3/gl3.h
@@ -42,6 +42,10 @@
 #define GL_APIENTRYP GL_APIENTRY*
 #endif
 
+#if !defined(GL_GLES_PROTOTYPES)
+#define GL_GLES_PROTOTYPES 1
+#endif
+
 /* Generated on date 20151015 */
 
 /* Generated C header for:
@@ -520,7 +524,7 @@
 typedef void (GL_APIENTRYP PFNGLVERTEXATTRIB4FVPROC) (GLuint index, const GLfloat *v);
 typedef void (GL_APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
 typedef void (GL_APIENTRYP PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
-#ifdef GL_GLEXT_PROTOTYPES
+#if GL_GLES_PROTOTYPES
 GL_APICALL void GL_APIENTRY glActiveTexture (GLenum texture);
 GL_APICALL void GL_APIENTRY glAttachShader (GLuint program, GLuint shader);
 GL_APICALL void GL_APIENTRY glBindAttribLocation (GLuint program, GLuint index, const GLchar *name);
@@ -1094,7 +1098,7 @@
 typedef void (GL_APIENTRYP PFNGLTEXSTORAGE2DPROC) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height);
 typedef void (GL_APIENTRYP PFNGLTEXSTORAGE3DPROC) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth);
 typedef void (GL_APIENTRYP PFNGLGETINTERNALFORMATIVPROC) (GLenum target, GLenum internalformat, GLenum pname, GLsizei bufSize, GLint *params);
-#ifdef GL_GLEXT_PROTOTYPES
+#if GL_GLES_PROTOTYPES
 GL_APICALL void GL_APIENTRY glReadBuffer (GLenum src);
 GL_APICALL void GL_APIENTRY glDrawRangeElements (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices);
 GL_APICALL void GL_APIENTRY glTexImage3D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels);