Fix GetFramebufferAttachmentParameteriv command handling.

gpu/command_buffer/service/gles2_cmd_validation_implementation_autogen.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_VALIDATION_IMPLEMENTATION_AUTOGEN_H_
 #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_VALIDATION_IMPLEMENTATION_AUTOGEN_H_
 
 static const GLenum valid_attachment_table[] = {
     GL_COLOR_ATTACHMENT0, GL_DEPTH_ATTACHMENT, GL_STENCIL_ATTACHMENT,
 };
 
 static const GLenum valid_attachment_table_es3[] = {
-    GL_DEPTH_STENCIL_ATTACHMENT,
+    GL_DEPTH_STENCIL_ATTACHMENT, GL_COLOR_EXT, GL_DEPTH_EXT, GL_STENCIL_EXT,
 };
 
 static const GLenum valid_backbuffer_attachment_table[] = {
     GL_COLOR_EXT, GL_DEPTH_EXT, GL_STENCIL_EXT,
 };
 
 static const GLenum valid_blit_filter_table[] = {
     GL_NEAREST, GL_LINEAR,
 };
 
@@ skipping 1148 matching lines @@
       arraysize(valid_texture_internal_format_storage_table_es3));
   texture_parameter.AddValues(valid_texture_parameter_table_es3,
                               arraysize(valid_texture_parameter_table_es3));
   vertex_attrib_type.AddValues(valid_vertex_attrib_type_table_es3,
                                arraysize(valid_vertex_attrib_type_table_es3));
   vertex_attribute.AddValues(valid_vertex_attribute_table_es3,
                              arraysize(valid_vertex_attribute_table_es3));
 }
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_VALIDATION_IMPLEMENTATION_AUTOGEN_H_